| List of Contributors |
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xv | |
| Preface |
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xxi | |
| 1 Magnetism |
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1 | (28) |
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1 | (2) |
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3 | (2) |
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5 | (1) |
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1.4 Ground State of an Ion and Hund's Rules |
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6 | (3) |
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1.5 An Atom in a Magnetic Field |
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9 | (1) |
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1.6 Mechanisms of Magnetic Interactions |
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10 | (7) |
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1.6.1 Dipolar Interactions |
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11 | (1) |
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11 | (1) |
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1.6.3 Indirect Exchange-Superexchange |
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12 | (1) |
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1.6.4 Indirect Exchange-Double Exchange |
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13 | (1) |
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1.6.5 Indirect Exchange-Antisymmetric Exchange |
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14 | (1) |
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1.6.6 Itinerant Exchange-RKKY Interaction |
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14 | (1) |
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1.6.7 Magnetism of Itinerant Electrons |
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15 | (2) |
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1.7 Collective Magnetic State |
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17 | (9) |
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1.7.1 Models of Interaction and Dimension of the Lattice |
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17 | (1) |
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18 | (2) |
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20 | (2) |
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22 | (1) |
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23 | (2) |
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25 | (1) |
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1.8 Applications and Research |
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26 | (2) |
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28 | (1) |
| 2 Molecular Magnetism |
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29 | (24) |
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29 | (1) |
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2.2 Birth of the Topic: Exchange-Coupled Clusters |
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29 | (2) |
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2.3 Evolution of the Topic: Molecule-Based Magnets |
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31 | (1) |
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2.4 Burgeoning Topics: Single-Molecule Magnets |
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32 | (5) |
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37 | (3) |
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2.6 Spin Crossover Complexes |
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40 | (3) |
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2.7 Charge Transfer-Induced Spin Transitions |
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43 | (1) |
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2.8 Multifunctional Materials |
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44 | (2) |
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46 | (2) |
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48 | (5) |
| 3 High-Spin Molecules |
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53 | (26) |
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53 | (1) |
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3.2 Strategies for High-Spin Molecules |
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54 | (6) |
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3.2.1 Magnetic Exchange Strategy for High-Spin Molecules |
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54 | (4) |
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3.2.1.1 Strict Orthogonality of the Magnetic Orbitals for Ferromagnetic Interaction |
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54 | (2) |
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3.2.1.2 Accidental Orthogonality of the Magnetic Orbitals for Ferromagnetic Interaction |
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56 | (1) |
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3.2.1.3 Spin Polarization Mechanism for Ferromagnetic Interaction |
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57 | (1) |
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3.2.2 Synthetic Strategy for High-Spin Molecules |
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58 | (2) |
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3.2.2.1 Bridging Ligands for High-Spin Molecules |
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58 | (2) |
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3.2.2.2 The Effect of the Blocking Ligands |
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60 | (1) |
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3.3 High-Spin Molecules based on d-Metal Ions |
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60 | (7) |
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3.3.1 Homo-Metallic High-Spin Molecules based on d-Metal Ions |
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61 | (5) |
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3.3.2 Hetero-Metallic High-Spin Molecules Based on d-Metal Ions |
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66 | (1) |
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3.4 High-Spin Molecules Based on f-Metal Ions |
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67 | (2) |
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3.5 High-Spin Molecules Based on d-f Metal Ions |
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69 | (2) |
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3.6 Conclusions and Perspectives |
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71 | (1) |
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72 | (7) |
| 4 Single Molecule Magnets |
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79 | (24) |
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79 | (3) |
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79 | (1) |
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4.1.2 Rough Outline of the Single-Molecule Magnets (SMMs) |
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79 | (3) |
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4.2 Measurement Techniques |
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82 | (9) |
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4.2.1 Direct Current (dc) Measurements |
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82 | (3) |
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4.2.2 Remnant Magnetization |
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85 | (1) |
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4.2.3 Alternating Current (ac) Measurements |
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86 | (2) |
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4.2.4 Electron Spin Resonance (ESR) |
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88 | (1) |
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4.2.5 Nuclear Magnetic Resonance (NMR) |
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89 | (2) |
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91 | (1) |
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4.3 Rational Design of SMMs |
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91 | (2) |
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93 | (4) |
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4.4.1 Polynuclear d Metal Complexes |
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93 | (2) |
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4.4.2 Mononuclear d Metal complexes (Single-Ion Magnets (SIMs)) |
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95 | (1) |
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4.4.3 Mononuclear f Metal Complexes (SIMs) |
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95 | (1) |
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4.4.4 Polynuclear f Metal Complexes |
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96 | (1) |
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4.4.5 Mixed Metal nd -4f Complexes |
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97 | (1) |
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4.5 Conclusions and Perspectives |
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97 | (1) |
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98 | (5) |
| 5 Magnetic Molecules as Spin Qubits |
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103 | (28) |
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103 | (4) |
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5.1.1 QIP Paradigms with Magnetic Molecules |
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105 | (2) |
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107 | (3) |
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5.3 Schemes for Two-Qubit Gates |
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110 | (13) |
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5.3.1 Permanently Coupled Qubits |
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110 | (2) |
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5.3.2 Switchable Effective Interactions in the Lack of Local Control |
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112 | (4) |
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5.3.3 Quantum Simulations |
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116 | (2) |
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5.3.4 The Cr7Ni-Ni-Cr7Ni Supramolecular Complexes |
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118 | (4) |
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5.3.5 Implementation of Two-Qubit Gates with a Tip |
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122 | (1) |
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5.4 Conclusions and Perspectives |
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123 | (2) |
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125 | (2) |
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127 | (1) |
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127 | (4) |
| 6 Single-Chain Magnets |
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131 | (30) |
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131 | (1) |
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132 | (3) |
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6.3 Synthetic Endeavors Toward SCMs |
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135 | (6) |
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6.3.1 The Dawn of SCMs: The Metal-Radical Approach |
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136 | (1) |
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6.3.2 Using Predesigned Building Blocks: Toward Magnetically Ordered Systems and Canted SCMs |
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137 | (3) |
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6.3.3 Benefitting from Heavy Metal Ions and Orbital Angular Momenta |
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140 | (1) |
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141 | (9) |
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6.4.1 Classical Spin Approach to Describe SCM Systems |
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142 | (5) |
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6.4.2 Systems with Noncollinear Anisotropy Axes |
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147 | (3) |
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150 | (5) |
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6.5.1 Toward Light-induced SCMs |
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150 | (1) |
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6.5.2 External Control of Spin Dynamics in SCM |
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151 | (2) |
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6.5.3 Multifunctional SCMs: Magnetochirality |
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153 | (2) |
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6.6 Conclusions and Perspectives |
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155 | (1) |
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156 | (5) |
| 7 High-T, Ordered Molecular Magnets |
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161 | (26) |
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161 | (2) |
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7.2 TCNE-Based Molecule-Based Magnets |
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163 | (5) |
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7.3 Prussian Blue Analogs |
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168 | (6) |
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7.4 Hepta- and Octacyanido-based Molecule-based Magnets |
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174 | (6) |
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7.5 Conclusions and Perspectives |
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180 | (2) |
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182 | (5) |
| 8 Thin Layers of Molecular Magnets |
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187 | (44) |
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187 | (1) |
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8.2 Thin Layers of Single-Molecule Magnets |
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188 | (18) |
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8.2.1 Classes of Single-Molecule Magnets |
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188 | (3) |
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8.2.2 Processing Methods for Thin Layers of Single-Molecule Magnets |
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191 | (2) |
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8.2.3 Probing Magnetism in Thin Layers of Single-Molecule Magnets |
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193 | (1) |
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8.2.4 One-Molecule-Thick Layers of Single-Molecule Magnets |
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194 | (10) |
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8.2.4.1 Role of the Surface: Lessons Learned from Simple Systems |
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194 | (2) |
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8.2.4.2 Role of the Surface: SMM-Specific Effects |
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196 | (1) |
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8.2.4.3 Summary of Early Findings |
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197 | (1) |
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198 | (2) |
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200 | (4) |
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8.2.4.6 Ln(trensal) Complexes and Endofullerenes |
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204 | (1) |
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8.2.5 Multilayers and Submicron Films of Single-Molecule Magnets |
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204 | (2) |
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8.3 Thin Layers of Antiferromagnetic Spin Clusters |
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206 | (3) |
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8.4 Thin Layers of High-Spin Cages |
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209 | (2) |
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8.5 Thin Layers of Molecular Magnets with Extended Networks |
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211 | (7) |
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8.5.1 Langmuir -Blodgett Films |
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211 | (2) |
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8.5.2 Cyanometallate Films |
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213 | (1) |
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8.5.3 V(TCNE)x and Derivatives |
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214 | (2) |
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8.5.4 Spin Crossover Networks |
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216 | (1) |
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217 | (1) |
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8.6 Conclusions and Perspectives |
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218 | (2) |
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220 | (1) |
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220 | (11) |
| 9 Spin Crossover Phenomenon in Coordination Compounds |
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231 | (22) |
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231 | (1) |
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9.2 Spin Crossover in the Solid and Liquid States |
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232 | (4) |
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9.2.1 Following Spin Transitions in Solution |
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233 | (1) |
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233 | (2) |
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9.2.3 Effect of Scan Rate |
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235 | (1) |
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9.2.4 Stepwise Spin Transitions |
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235 | (1) |
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9.3 Multifunctionality in Spin Crossover Compounds |
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236 | (2) |
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9.4 Spin Crossover Phenomenon in Soft Matter |
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238 | (1) |
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9.5 Spin crossover Phenomenon at the Nanoscale |
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239 | (6) |
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9.6 Charge Transport Properties of Single-Spin Crossover Molecules |
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245 | (1) |
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245 | (1) |
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246 | (7) |
| 10 Porous Molecular Magnets |
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253 | (26) |
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253 | (2) |
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10.2 PMMs with Spin-State Switching |
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255 | (3) |
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10.3 PMMs with Slow Relaxation of Magnetization |
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258 | (6) |
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10.3.1 PMMs with SMM Dynamics |
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259 | (1) |
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10.3.2 PMMs with Spin Glass-like Behaviors |
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260 | (3) |
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10.3.3 PMMs with SCM Dynamics |
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263 | (1) |
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10.4 PMMs with Long-Range Magnetic Ordering |
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264 | (7) |
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10.4.1 3D Network Approach |
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264 | (2) |
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10.4.2 2D Magnetic Layer Approach |
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266 | (3) |
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10.4.2.1 Pillared-Layer Magnets |
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266 | (2) |
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10.4.2.2 Layer Magnets based on 4d-5d Ions |
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268 | (1) |
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10.4.2.3 Layer Magnets based on Charge Transfer System |
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268 | (1) |
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10.4.3 1D Magnetic Chain Approach |
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269 | (2) |
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10.5 PMMs with Switching Between Ferromagnetism and Antiferromagnetism |
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271 | (2) |
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10.6 PMMs with the Magnetism-Modified Through Postsynthetic Process |
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273 | (2) |
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10.7 Conclusions and Perspectives |
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275 | (1) |
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276 | (3) |
| 11 Molecular Magnetic Sponges |
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279 | (22) |
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279 | (2) |
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11.2 The First Molecular Magnetic Sponge Systems |
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281 | (2) |
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11.3 CN-Bridged Molecular Magnetic Sponges |
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283 | (11) |
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11.3.1 Low-Dimensional CN-Bridged Molecular Magnetic Sponges |
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284 | (2) |
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11.3.2 CN-Bridged Molecular Magnetic Sponges with 2D->3D Transformation |
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286 | (2) |
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11.3.3 CN-Bridged Molecular Magnetic Sponges with 3D->3D Transformation |
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288 | (4) |
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11.3.4 On the Borderline of Microporosity and Magnetic Sponge Behavior in CN-Bridged Systems |
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292 | (2) |
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11.4 Molecular Magnetic Sponges with Bridging Ligands Other Than Cyanide |
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294 | (2) |
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11.5 Conclusions and Perspectives |
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296 | (1) |
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297 | (4) |
| 12 Non-Centrosymmetric Molecular Magnets |
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301 | (22) |
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301 | (3) |
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12.1.1 Scope of the Chapter |
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301 | (1) |
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12.1.2 Effect of Symmetry on Physical Properties |
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302 | (2) |
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12.1.3 Dimensionality of the Coordination-Bonded Molecular Objects |
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304 | (1) |
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12.2 Synthetic Strategies Toward Non-centrosymmetric Magnets (NCM) |
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304 | (7) |
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12.2.1 Spontaneous Crystallization in Non-centrosymmetric Space Groups |
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305 | (2) |
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12.2.2 Using Chiral Ligands |
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307 | (3) |
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12.2.3 Enantioselective Self-Assembly |
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310 | (1) |
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12.3 Physicochemical Properties of Non-centrosymmetric Magnets |
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311 | (8) |
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12.3.1 Specific Magnetic Properties |
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312 | (1) |
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313 | (2) |
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315 | (1) |
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316 | (3) |
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319 | (1) |
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319 | (1) |
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319 | (4) |
| 13 Molecular Photomagnets |
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323 | (22) |
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323 | (2) |
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13.2 Photomagnetic Coordination Networks based on [ M(CN)x] (x = 6 or 8) |
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325 | (8) |
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13.2.1 Hexacyanidometallate-Based Photomagnets |
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325 | (5) |
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13.2.1.1 Photoinduced Magnetic Pole Inversion in a Ferro- Ferrimagnet (FeII0.40MnII0.60)1.5[ CrIII(CN)6] |
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326 | (1) |
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13.2.1.2 Antiferro -Ferromagnetic Photoswitching in a Multifunctional Magnet, RbIMnII[ FeIII(CN)6] |
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327 | (2) |
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13.2.1.3 Photoinduced Magnetization in CoII3[ OsIII(CN)6]2·6H2O Prussian Blue Analog |
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329 | (1) |
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13.2.1.4 Photoinduced Magnetization in Heterostructures of Prussian Blue Analogs |
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329 | (1) |
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13.2.2 Octacyanidometallate-Based Photomagnets |
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330 | (3) |
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13.2.2.1 Copper(II) -Octacyanomolybdate(IV) Systems |
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330 | (1) |
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13.2.2.2 Cobalt(II)-Octacyanotungstate(V) Systems |
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331 | (2) |
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13.3 Photomagnetic Polynuclear Molecules Based on [ MCN)x] (x = 6 or 8) |
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333 | (7) |
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13.3.1 Photomagnetic Polynuclear Molecules Built with [ FeIII(CN)6]3- |
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333 | (1) |
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13.3.2 Photomagnetic Polynuclear Molecules Built with [ MoIV(CN8]4- |
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334 | (1) |
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13.3.3 Photomagnetic Polynuclear Molecules Built with LFe(CN)3 |
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335 | (4) |
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13.3.3.1 Octanuclear [ Co4Fe4] Cube Molecule |
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335 | (1) |
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13.3.3.2 Tetranuclear [ Co2Fe2] Molecules |
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336 | (1) |
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13.3.3.3 Dinuclear [ CoFe] Molecules |
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337 | (2) |
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13.3.4 Multifunctional Molecules with Electron Transfer |
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339 | (1) |
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13.3.5 Related Networks Built with LFe(CN)x |
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339 | (1) |
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13.4 Conclusions and Perspectives |
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340 | (1) |
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341 | (4) |
| 14 Luminescent Molecular Magnets |
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345 | (24) |
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345 | (1) |
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14.2 Electronic Structure of Lanthanide Ions |
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346 | (2) |
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14.3 Luminescence of Lanthanide Ions |
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348 | (3) |
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14.4 Magnetism of Lanthanide Ions |
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351 | (1) |
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14.5 Synthetic Strategies to Obtain Luminescent SMMs |
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352 | (4) |
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14.6 Luminescent Lanthanide Single Molecule Magnets |
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356 | (4) |
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14.7 NIR Luminescent-Prolate Lanthanides |
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360 | (5) |
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14.8 Conclusions and Perspectives |
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365 | (1) |
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365 | (4) |
| 15 Conductive Molecular Magnets |
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369 | (36) |
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369 | (2) |
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15.2 Design of Metal Complexes with TTF-Containing Ligands |
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371 | (8) |
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15.2.1 Pi-d Interactions Through Covalent Bonds |
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371 | (1) |
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15.2.2 Discrete Complexes with Neutral TTF |
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372 | (4) |
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15.2.3 Polymeric Complexes with Neutral TTF |
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376 | (1) |
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15.2.4 Discrete Complexes with Oxidized TTF Radical |
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377 | (1) |
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15.2.5 Polymeric Complexes with Oxidized TTF Radical |
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378 | (1) |
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15.2.6 Other Interesting Compounds |
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379 | (1) |
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15.3 Hybrid Arrangements of Magnetic Layers and Conducting Stacked Layers |
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379 | (5) |
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15.3.1 Design of Molecular Conductors with Paramagnetic Ions |
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379 | (1) |
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15.3.2 Utilization of Oxalate-Metal Complexes for Magnetic Layers |
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380 | (1) |
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15.3.3 Combination of Single-Molecule Magnets and Conductors |
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381 | (1) |
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15.3.4 Combination of Spin-Crossover Complexes and Conductors |
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382 | (1) |
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15.3.5 Hybrid Compounds with Polyoxometalate Clusters |
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383 | (1) |
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15.4 Conductive Magnetic Coordination Frameworks |
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384 | (7) |
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15.4.1 Combination of Magnetic Frameworks with Conducting Pathways |
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384 | (1) |
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15.4.2 Cyano-Bridged Electron Transfer Chains |
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384 | (1) |
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15.4.3 One-Dimensional Rhodium(I)-Semiquinonate Complexes |
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385 | (1) |
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15.4.4 Charge Transfer Assemblies of Paddlewheel-type Ru Complexes and Polycyano Organic Acceptors |
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386 | (3) |
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15.4.5 Neutral-Ionic Transition in Magnetic Chains |
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389 | (1) |
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15.4.6 Donor/Acceptor Electron-Transferred Magnetic Chains |
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389 | (1) |
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15.4.7 Perpendicular Arrangements of Magnetic Frameworks and Conducting Columns |
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390 | (1) |
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15.5 Purely Organic Systems |
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391 | (6) |
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15.5.1 TTF-Attached Organic Radicals |
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391 | (4) |
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15.5.2 Other Conductive Organic Radicals |
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395 | (2) |
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15.6 Conclusions and Perspectives |
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397 | (1) |
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397 | (8) |
| 16 Molecular Multiferroics |
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405 | (14) |
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405 | (1) |
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16.2 Classification of Multiferroic Materials |
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406 | (1) |
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16.3 Classification of Molecular Multiferroics |
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407 | (1) |
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16.4 Metal-Organic Framework Compounds and Hybrid Perovskites |
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408 | (6) |
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16.5 Charge Order Multiferroics |
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414 | (2) |
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16.6 Conclusions and Perspectives |
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416 | (1) |
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416 | (3) |
| 17 Modeling Magnetic Properties with Density Functional Theory-Based Methods |
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419 | (28) |
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419 | (4) |
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17.2 Theoretical Analysis of Spin Crossover Systems |
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423 | (1) |
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17.3 DFT Methods to Evaluate Exchange Coupling Constants |
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424 | (7) |
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17.4 DFT Methods to Calculate Magnetic Anisotropy Parameters |
|
|
431 | (4) |
|
17.5 DFT Approaches to Calculate Transport Through Magnetic Molecules |
|
|
435 | (4) |
|
|
|
439 | (8) |
| 18 Ab Initio Modeling and Calculations of Magnetic Properties |
|
447 | (26) |
|
|
|
|
|
|
|
447 | (1) |
|
18.2 Ab Initio Calculations |
|
|
447 | (12) |
|
18.2.1 Isotropic Coupling |
|
|
448 | (4) |
|
18.2.2 Anisotropic Coupling |
|
|
452 | (3) |
|
18.2.3 Zero-Field Splitting and Zeeman Effect in Mononuclear Systems |
|
|
455 | (1) |
|
18.2.4 Ab Initio Computational Schemes |
|
|
456 | (3) |
|
18.3 Spin Hamiltonian Calculations |
|
|
459 | (10) |
|
18.3.1 Complete Matrix Diagonalization using Symmetries |
|
|
461 | (3) |
|
18.3.2 Finite-Temperature Lanczos Method |
|
|
464 | (3) |
|
18.3.3 FTLM for Anisotropic Systems |
|
|
467 | (2) |
|
|
|
469 | (4) |
| Index |
|
473 | |