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Methods of molecular quantum mechanics

Roy McWeeny
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TLDR
In this article, a survey of many-electron wavefunctions spin and permutation symmetry is presented, including the Electron Distribution Self-Consistent Field Theory Valence Bond Theory Multiconfiguration SCF Theory Perturbation Theory and Diagram Techniques Large-Scale CI and the Unitary-Group Approach Small Terms in the Hamiltonian Static Properties Dynamic Properties Dynamic properties and Response Theory Propagator and Equation-of-Motion Methods Intermolecular Forces Appendixes: Atomic Orbitals Angular Momentum Symmetry and Group Concepts Relativistic
Abstract
Introductory Survey Mathematical Methods Many-Electron Wavefunctions Spin and Permutation Symmetry Digression: The Electron Distribution Self-Consistent Field Theory Valence Bond Theory Multiconfiguration SCF Theory Perturbation Theory and Diagram Techniques Large-Scale CI and the Unitary-Group Approach Small Terms in the Hamiltonian Static Properties Dynamic Properties and Response Theory Propagator and Equation-of-Motion Methods Intermolecular Forces Appendixes: Atomic Orbitals Angular Momentum Symmetry and Group Concepts Relativistic Terms in the Hamiltonian References Index

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Reference EntryDOI

Relativistic Computation of NMR Shieldings and Spin‐Spin Coupling Constants

TL;DR: In this article, a Relativistic Theory of NMR Shielding and Spin Spin-Spin Coupling Constants is presented, which is based on the concept of spin-spin coupling.
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Combining two-body density functionals with multiconfigurational wavefunctions: diatomic molecules

TL;DR: In this paper, the two-body density functionals of Colle and Salvetti (CS), Moscardo and San-Faban (MSF), and Moscardó and Perez-Jimenez (MPJS) were used to predict the equilibrium bond lengths, harmonic frequencies and dissociation energies of fifteen diatomic molecules (3B2, 3BN, 2BS, 1C2, 2CN, 1CO, 1F2, 1FC1, 1N2, 4NCl, 3NCl) using full valence-shell CASSC
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Computing the Fukui function from ab initio quantum chemistry: approaches based on the extended Koopmans’ theorem

TL;DR: In this article, two approaches are used, one based on the extended Koopmans theorem differential equation and the other based directly on the expression of the ionized wave function from the extended koopmans' theorem.
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Nanowire Transistors: Physics of Devices and Materials in One Dimension

TL;DR: In this article, the authors present a self-contained and up-to-date account of the physics and technology of nanowire semiconductor devices, including a unified framework and language to accelerate scientific and technological developments across the two fields.
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Ab initio model potential embedded-cluster study of the ground and lowest excited states of Cr3+ defects in the elpasolites Cs2NaYCl6 and Cs2NaYBr6

TL;DR: In this paper, the results of an ab initio model potential (AIMP) embedded-cluster study of the ground and lowest excited states of Cr3+defects in the elpasolites Cs2NaYCl6 and Cs 2NaYBr6 are presented.
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