valence bond

valence bond

[′vā·ləns ‚bänd]
(physical chemistry)
The bond formed between the electrons of two or more atoms.
References in periodicals archive ?
The first volume focuses on fundamental aspects of chemical bonding, and presents such perspectives as the physical origin of covalent bonding, the natural bond orbital (NBO) view, the valence bond perspective, the conceptual density functional theory, and relativity and chemical bonding.
The American chemist Linus Pauling developed the resonance concept in the 1920s and 1930s as part of his valence bond approach to molecular structure, which he hoped would enable relatively mathematically unsophisticated chemists to use the new quantum mechanics (17) to obtain a pragmatically useful understanding of the structure and bonding in molecules.
He pays special attention to the Rayleigh variational method, characterizing it as the essential tool for any practical application both in molecular orbital and valence bond theory.
Covers basic concepts and models, stereochemistry, conformational analysis and molecular mechanics, molecular orbital theory and valence bond theory, reactive intermediates, methods of studying organic reactions, acid-base catalysis, substitution reactions, concerted reactions, and photochemical reactions
The authors provide a qualitative insight of valence bond (VB) theory and ways to apply the theory to the problems of bonding and reactivity in the ground and excited states of molecules.
16 JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Messmer argues that an unconventional bonding scheme, known as the generalized valence bond (GVB) theory, gracefully accounts for a class of molecules that conventional theories can't portray without slipping in counterintuitive concepts and adjustments.
Chapter 4 Applications of Molecular Orbital Theory and Valence Bond Theory.
The valence bond model is a description of acid-base bonding useful in fields such as materials science and mineralogy.
Called the resonating valence bond (RVB) theory, it relies on the magnetic spins of copper atoms to cause, under special circumstances, the attraction of electron pairs.
Using molecular mechanics to tie all of these things together in the familiar language of the organic chemist, valence bond pictures
In 1858 Friedrich August Kekule introduced his valence bond theory of chemical combination that he used in 1865 when he suggested a chemical structure for benzene.
An introduction to valence bond methods with an explanation of the origin of the chemical bond