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Chapter 1 Introduction and Motivation |
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1 | (33) |
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1.1 The Chemical Nature of Electronic Excited States |
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2 | (7) |
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1.2 Chemical Reactivity in Electronic Excited States |
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9 | (13) |
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1.3 The Main Mechanism for Excited State Photochemical Transformations |
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22 | (2) |
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1.4 The Essential Features of Excited State Computational Procedures |
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24 | (10) |
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1.4.1 Electronic Structure Computations Within the Algebraic Approximation |
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24 | (3) |
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1.4.2 Gradients, Second Derivatives, Molecular Structure and Dynamics |
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27 | (1) |
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1.4.3 Perturbation Theory Within the Algebraic Approximation |
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28 | (2) |
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30 | (4) |
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Chapter 2 Conceptual Development Centred on the Shapes and Topological Features of Potential Surfaces |
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34 | (56) |
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2.1 Excited States Are VB Isomers of Ground States |
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35 | (5) |
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2.2 The Mechanism of Radiationless Decay |
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40 | (4) |
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2.3 Theory of Conical Intersections |
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44 | (40) |
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2.3.1 The "Shape" of Conical Intersections |
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44 | (12) |
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2.3.2 Understanding Conical Intersections Using Valence Bond Theory |
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56 | (5) |
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2.3.3 What Happens When One Does a Conical Intersection Circuit in the Branching Plane? |
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61 | (10) |
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2.3.4 Conical Intersections in n - 1 Directions: For Example Singlet-Triplet Crossings |
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71 | (7) |
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2.3.5 More Advanced Treatment of the Extended Seam of a Conical Intersection |
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78 | (6) |
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84 | (6) |
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86 | (4) |
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Chapter 3 Electronic Structure Methods for the Computation of Electronic States |
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90 | (44) |
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3.1 How Is an Electronic Excited State Formulated Within the Orbital-based Methods Used in the Ground State? |
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91 | (1) |
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3.2 The Conceptual Aspects of Electron Correlation for Electronic Excited States |
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92 | (18) |
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3.2.1 Multi-dimensional Perturbation Theory |
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93 | (9) |
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3.2.2 Three Different Correlation Effects in Excited States |
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102 | (1) |
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3.2.3 Effective Hamiltonians for Singly Ionized States and for Single Excitations from a Closed Shell |
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103 | (3) |
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3.2.4 Combining Force Field Methods with Electronic Structure Computations |
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106 | (4) |
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3.3 Electronic Structure Methods for Excited State Computation |
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110 | (17) |
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3.3.1 Methods with max nh = 1, max np = 1: Complete Active Space SCF Method |
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110 | (7) |
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3.3.2 Methods with (max nh = 2, max np = 2): CASPT2 and RPA/TD-DFT |
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117 | (1) |
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3.3.3 Methods Based on Space of Particle Hole Excitations |
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118 | (1) |
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3.3.4 Nuclear Gradients and Hessians |
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119 | (2) |
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3.3.5 Designing an Active Space |
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121 | (6) |
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3.4 Non-stationary States and Electron Dynamics: Solving the Time-dependent Schrodinger Equation for Electronic Motion (Electron Dynamics) |
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127 | (4) |
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3.5 Summary and Conclusions |
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131 | (3) |
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132 | (2) |
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Chapter 4 The Dynamics of Nuclear Motion |
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134 | (19) |
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4.1 Theoretical and Conceptual Introduction |
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134 | (5) |
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4.2 Quantum Dynamics with Moving Gaussians |
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139 | (6) |
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4.3 Electron Dynamics Coupled to Nuclear Motion (the Ehrenfest Method and Beyond) |
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145 | (3) |
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4.4 Semi-classical Dynamics with Surface Hopping |
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148 | (3) |
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151 | (2) |
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151 | (2) |
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Chapter 5 Applications and Case Studies in Nonadiabatic Chemistry |
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153 | (62) |
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153 | (4) |
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5.2 Photochromism, Photostabilizers and Photochemical Switches |
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157 | (17) |
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5.2.1 Ultrafast Internal Conversion of Azulene |
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157 | (2) |
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5.2.2 Dihydroazulene (DHA)/Vinylheptafulvene (VHF) Photochromism |
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159 | (3) |
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5.2.3 Diarylethene Photochromism |
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162 | (5) |
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5.2.4 Excited State Intramolecular Proton Transfer in o-hydroxyphenyl-(1,3,5)-triazine |
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167 | (3) |
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5.2.5 Photostability of an Excited Cytosine-Guanine Base Pair in DNA |
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170 | (4) |
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5.3 Cis-Trans Isomerization |
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174 | (5) |
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5.3.1 Photo-activation of the Photoactive Yellow Protein |
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174 | (5) |
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5.4 Vibrational Control of Photochemistry on an Extended Seam |
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179 | (10) |
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5.4.1 Fulvene Dynamics on an Extended Seam |
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180 | (3) |
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5.4.2 A Model Cyanine Dye |
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183 | (4) |
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5.4.3 The Extended Seam Benzene Conical Intersection |
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187 | (2) |
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5.5 Photochemistry Involving Lone Pairs [ n-π* States) |
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189 | (5) |
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5.5.1 Photochemistry of Formaldehyde |
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190 | (4) |
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5.6 Energy Transfer (Charge Transfer vs. Charge Migration) |
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194 | (9) |
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5.6.1 Charge Transfer in Bis(hydrazine) Radical Cations and in Bis(methylene) Adamantyl Radical Cation (BMA) |
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194 | (7) |
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5.6.2 Electron Dynamics (Charge Migration) in BMA[ 5,5] |
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201 | (2) |
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5.7 Mapping the "Complete" Conical Intersection Seams in Benzene |
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203 | (5) |
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208 | (7) |
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209 | (6) |
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Chapter 6 Conclusion and Future Developments |
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215 | (6) |
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220 | (1) |
Subject Index |
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221 | |