Titlebook: Unified Valence Bond Theory of Electronic Structure; Applications Nicolaos Demetrios Epiotis Textbook 1983 Springer-Verlag Berlin Heidelber

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Why “Effective” Bonds exist when “Real” Bonds are Absent: The Electronic Structure of the (1.1.1.) Ps SCP-MO computations by Newton and Schulman., has no bond linking the bridgehead carbons, but, nonetheless, it is comparatively very stable.. I now show that MOVB theory. easily accounts for these “strange” observations by comparing the electronic structures of the following three molecules.

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誓言

Structural Isomerism and the Electronic Basis for Ligand Segregation on C2 CoresOne of the most fascinating trends of molecular stereochemistry is the tendency of ligands to segregate into sets when attached on carbon cores. A typical example is provided by the comparison of 1,1 and cis 1,2-difluoroethylene, henceforth referred to as G and C 1,2 difluoroethylene, respectively.

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The Explicit Theory of “Real” Electrocyclizations of Closed and Open Shell MoleculesThe purpose of this chapter is threefold:

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Frontier Configuration Theory of Spin SelectionThe spin selection problem revolves about the determination of the sign and magnitude of the energy difference between two different spin states . for a given geometry, g, and a given number of electron pairs, n. For our purposes, g can be either a Hückel AO (HAO) or M?bius AO (MAO) geometry.

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The Induced Deexcitation Model, then the Carbon Valency towards Y has more p Character than it had towards X”.. We shall refer to this as .. In recent times, this rule, in one form or another, has been applied to a variety of interesting chemical problems by many, most notably by Bent..