The primary and secondary first and second derivatives of the NMR isotropic chemical shift with respect to bond length modification have been calculated in the gauge invariant atomic orbital (GIAO) perturbed Hartree-Fock approach for some 177 first-row nuclei in 63 molecules using the mixed basis he
Chemical bonding: From Lewis to atoms in molecules
✍ Scribed by R. F. W. Bader; J. Hernández-Trujillo; F. Cortés-Guzmán
- Publisher
- John Wiley and Sons
- Year
- 2006
- Tongue
- English
- Weight
- 231 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0192-8651
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
The Lewis electron pair concept and its role in bonding are recovered in the properties of the electron pair density and in the topology of the Laplacian of the electron density. These properties provide a bridge with the quantum mechanical description of bonding determined by the Feynman, Ehrenfest, and virial theorems, bonding being a consequence of the electrostatic forces acting within a molecular system. © 2006 Wiley Periodicals, Inc. J Comput Chem, 2007
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