Titlebook: Unified Valence Bond Theory of Electronic Structure; N. D. Epiotis,J. R. Larson,H. L. Eaton Textbook 1982 Springer-Verlag Berlin Heidelber

Hippocampus

The Formal and Conceptual Difficulties of MO Theory VB theory, with the latter yielding decisively to the former in popularity in the last fifteen years or so. Accordingly, our first task is to survey briefly the various brands of MO theory and identify the formal and conceptual difficulties which hinder their application to chemical problems.

有助于

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不可比擬

使熄滅

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bourgeois

The Formal and Conceptual Difficulties of MO Theorymost notably the variational method. and the Rayleigh-Schr?dinger and Brillouin-Wigner perturbation methods,. and the MO. and VB. recipes for the construction of the antisymmetrized molecular wavefunction.. It is not inaccurate to say that the vast majority of chemists have been nurtured with MO and

Expressly

Lacunar-Stroke

Qualitative Valence Bond Theoryirst, it familiarized many chemists, including the principal author, with basic MO theoretical methodology. Second, it demonstrated that simple concepts can be extracted from simple equations. In addition, these concepts were shown to be operationally useful, i.e., they could be used to rationalize