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Titlebook: Applications of Electronic Structure Theory; Henry F. Schaefer Book 1977 Springer Science+Business Media New York 1977 Atom.Observable.ab

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期刊全称Applications of Electronic Structure Theory
影响因子2023Henry F. Schaefer
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学科分类Modern Theoretical Chemistry
图书封面Titlebook: Applications of Electronic Structure Theory;  Henry F. Schaefer Book 1977 Springer Science+Business Media New York 1977 Atom.Observable.ab
影响因子These two volumes deal with the quantum theory of the electronic structure of ab initio is the notion that approximate solutions molecules. Implicit in the term of Schrodinger‘s equation are sought "from the beginning," i. e. , without recourse to experimental data. From a more pragmatic viewpoint, the distin­ guishing feature of ab initio theory is usually the fact that no approximations are involved in the evaluation of the required molecular integrals. Consistent with current activity in the field, the first of these two volumes contains chapters dealing with methods per se, while the second concerns the application of these methods to problems of chemical interest. In a sense, the motivation for these volumes has been the spectacular recent success of ab initio theory in resolving important chemical questions. However, these applications have only become possible through the less visible but equally important efforts of those developing new theoretical and computational methods and models. Henry F. Schaefer vii Contents Contents of Volume 3 xv Chapter 1. A Priori Geometry Predictions 1. A. Pople 1. Introduction . . . . . . . . . . . . . . . . . . . 1 2. Equilibrium Geometries b
Pindex Book 1977
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Direct Use of the Gradient for Investigating Molecular Energy Surfaces,ocedure. This method has some serious drawbacks both in efficiency and in numerical accuracy. Indeed, Hartree. observes that “the differentiation of a function specified only by a table of values ... is a notoriously unsatisfactory process, particularly if higher derivatives than the first are requi
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A Personal Skill of Caring for Oneselfo . predictions of structure making no appeal to experimental data other than using the values of fundamental constants. Theoretical structures of this sort have been used for two main purposes. The first is to assess how well experimentally known structures are reproduced at a given level of theory
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A Personal Skill of Caring for Oneself application of the . techniques to the chemistry of transition metal compounds. However, with the technical developments which may be forecast for the next few years, this type of calculation will probably become much more common. In this vast field that is open to the quantum chemist (in an author
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R. Trent Codd III,Steven C. Hayesnd thus, among other things, play a vital role in helping extend and recalibrate semiempirical methods. . capability for treating . molecules is very important in this connection, since many of the most intriguing aspects of strained systems only appear in rather large systems (i.e., 223c5-10 heavy
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