quantum theory of valence

quantum theory of valence
价的量子理论

English-Chinese chemistry dictionary (英汉化学大词典). 2013.

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  • quantum mechanics — quantum mechanical, adj. Physics. a theory of the mechanics of atoms, molecules, and other physical systems that are subject to the uncertainty principle. Abbr.: QM Cf. nonrelativistic quantum mechanics, relativistic quantum mechanics. [1920 25]… …   Universalium

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  • Valence bond theory — In chemistry, valence bond theory explains the nature of a chemical bond in a molecule in terms of atomic valencies. [Murrel, JN, Kettle, SF Tedder, JM The Chemical Bond , John Wiley Sons (1985) ISBN 0 471 90759 6] Valence bond theory summarizes… …   Wikipedia

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  • Quantum chemistry composite methods — are ab initio post Hartree Fock methods in computational chemistry that aim for high accuracy by combining the results of several calculations. They combine methods with a high level of theory and a small basis set with methods that employ lower… …   Wikipedia

  • Quantum number — Quantum numbers describe values of conserved numbers in the dynamics of the quantum system. They often describe specifically the energies of electrons in atoms, but other possibilities include angular momentum, spin etc.Since any quantum system… …   Wikipedia

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  • Valence (chemistry) — For other uses, see Valence (disambiguation). In chemistry, valence, also known as valency or valence number, is a measure of the number of bonds formed by an atom of a given element. Valence can be defined as the number of valence bonds[1] a… …   Wikipedia

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  • Valence bond codes — VB computer programs for modern valence bond calculations: * CRUNCH is by Gordon A. Gallup and his group. [ [http://phy ggallup.unl.edu/crunch CRUNCH] ] * GAMESS (UK) includes calculation of VB wave functions by the TURTLE code, due to J.H. van… …   Wikipedia

  • History of quantum mechanics — The history of quantum mechanics as this interlaces with history of quantum chemistry began essentially with the 1838 discovery of cathode rays by Michael Faraday, during the 1859 1860 winter statement of the black body radiation problem by… …   Wikipedia

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