Valency, M.F. O`Dwyer; J.E. Kent; R.D. Brown

Автор: K. Prassides
Название: Mixed Valency Systems: Applications in Chemistry, Physics and Biology
ISBN: 9401055998 ISBN-13(EAN): 9789401055994
Издательство: Springer
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Описание: Proceedings of the NATO Advanced Research Workshop, Aghia Pelaghia, Crete, Greece, June 10-16, 1990

Автор: N. D. Epiotis
Название: Unified Valence Bond Theory of Electronic Structure
ISBN: 3540120009 ISBN-13(EAN): 9783540120001
Издательство: Springer
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Описание: The bond diagrammatic representation of molecules is the foundation of MOVB theory. To a certain extent, this kind of representation is analogous to the one on which "resonance theory" is based and this fact can be projected by a comparison of the various ways in which MOVB theory depicts a species made up of three core and two ligand MO's which define two subsystems containing a total of six electrons and the ways in which "resonance theory" (i. e., qualitative VB theory) depicts a six-electron-six-AO species such as the pi system of CH =CH-CH=CH-CH=O. The 2 different pictorial representations are shown in Scheme 1 so that the analogies are made evident. First of all, the total MOVB diagrammatic representation of the 6/5 species is obtained by a linear combination of three complete bond diagrams, as in Al, which describe the optimal linear combination of l MOVB Configuration Wavefunctions (CW's). By the same token, a total VB diagrammatic representation of the 6/6 species can be obtained by writing a "dot structure", as in Bl, and taking this to mean the optimal linear combination of all VB CW's. Next, we can approxi- mate the MOVB wavefunction of the 6/5 species by one complete (or detailed) bond dia- gram" (A2). No simple VB representation analogy can be given in this case. Alterna- tively, we can approximate the MOVB wavefunction by a linear combination of compact bond diagrams, as in A3, in the way described before.

Автор: J. R. Larson; N. D. Epiotis; H. L. Eaton
Название: Unified Valence Bond Theory of Electronic Structure
ISBN: 3540114912 ISBN-13(EAN): 9783540114918
Издательство: Springer
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Автор: I. David Brown; Kenneth R. Poeppelmeier
Название: Bond Valences
ISBN: 3642549675 ISBN-13(EAN): 9783642549670
Издательство: Springer
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Описание: The series Structure and Bonding publishes critical reviews on topics of research concerned with chemical structure and bonding.

Автор: D.M.P. Mingos; S. Fischer; D. Kurad; J. Mehmke; K.
Название: Bonding and Charge Distribution in Polyoxometalates: A Bond Valence Approach
ISBN: 3662156210 ISBN-13(EAN): 9783662156216
Издательство: Springer
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Описание: This book presents the most comprehensive analysis of bonding in polyoxometalates and related oxides based on classical bonding concepts and the bond valence model. Numerous tables and figures underline and illuminate the results, making it a valuable resource.

Автор: L.C. Gupta
Название: Theoretical and Experimental Aspects of Valence Fluctuations and Heavy Fermions
ISBN: 1461282594 ISBN-13(EAN): 9781461282594
Издательство: Springer
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Описание: lhe subject of Valence Fluctuations has kept itself alive ard active as it has provided many shocks ard suprises particularly among the Ce- ard U-based intermetallies.

Автор: D.B. Brown
Название: Mixed-Valence Compounds
ISBN: 9400990782 ISBN-13(EAN): 9789400990784
Издательство: Springer
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Описание: Proceedings of the NATO Advanced Study Institute, Oxford, England, September 10-21, 1979