Molecular Orbital Methods in Organic Chemistry HMO and PMO PDF Download
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Author: William B. Smith
Publisher:
ISBN:
Category :
Languages : en
Pages : 161
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Book Description
Author: Keith Yates
Publisher: Elsevier
ISBN: 0323152996
Category : Science
Languages : en
Pages : 384
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Book Description
Huckel Molecular Orbital Theory aims to be a simple, descriptive, and non-mathematical introduction to the Huckel molecular orbital theory and its applications in organic chemistry, thus the more basic text found in the book. The book, after an introduction to related concepts such as quantum mechanics and chemical bonding, discusses the Huckel molecular orbital theory and its basic assumptions; the variation principle and the basic Huckel method; and the use of symmetry properties in simplifying Huckel method orbital calculations. The book also covers other related topics such as the extensions and improvements of the simple Huckel method; the quantitative significance Huckel molecular orbital results; and the principle of conservation of orbital symmetry. The text is recommended for undergraduate students of organic chemistry who wish to be acquainted with the basics of the Huckel molecular orbital theory.
Author: William B. Smith
Publisher:
ISBN:
Category :
Languages : en
Pages : 161
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Book Description
Author: William B. Smith
Publisher:
ISBN:
Category :
Languages : en
Pages : 161
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Book Description
Author: Michael Dewar
Publisher: Springer Science & Business Media
ISBN: 1461344042
Category : Science
Languages : en
Pages : 584
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Book Description
This textbook introduces the perturbation molecular orbital (PMO) th,eory of organic chemistry. Organic chemistry encompasses the largest body of factual information of any of the major divisions of science. The sheer bulk of the subject matter makes many demands on any theory that attempts to systematize it. Time has shown that the PMO method meets these demands admirably. The PMO method can provide practicing chemists with both a pictorial description of bonding and qualitative theoretical results that are well founded in more sophisticated treatments. The only requirements for use of the theory are high school algebra and a pencil and paper. The treatment described in this book is by no means new. Indeed, it was developed as a complete theory of organic chemistry more than twenty years ago. Although it was demonstrably superior to resonance theory and no more complicated to use, it escaped notice for two very simple reasons. First, the original papers describing it were very condensed, perhaps even obscure, and contained few if any examples. Second, for various reasons, no general account appeared in book form until 1969,* and this was still relatively inaccessible, being in the form of a monograph where molecular orbital (MO) theory was treated mainly at a much more sophisticated level. The generality of the PMO method is illustrated by the fact that all the new developments over the last two decades can be accommodated in it.
Author: Michael James Steuart Dewar
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 520
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Book Description
![Molecular Orbital Methods in Organic Chemistry Hmo and Pmo ; an Introduction [By] William B. Smith PDF](https://books.google.com/books/content/images/frontcover/gmAXcgAACAAJ?fife=w80-h100)
Author: William Burton Smith
Publisher:
ISBN:
Category : Quantum chemistry
Languages : en
Pages : 161
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Book Description
Author: William Burton Smith
Publisher: Wiley-VCH
ISBN: 9781560819370
Category : Chemistry, Physical organic
Languages : en
Pages : 192
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Book Description
An introduction for students and practicing organic chemists, using the Huckel molecular orbital theory as a pedagogical means to explain modern theoretical methods and introduce more advanced techniques in PMO and FMO theory, molecular mechanics, semiempirical methods, and ab initio and density functional methods. Outlines the scope and limitations of several computational programs and offers specific examples of input and output. Contains chapter problems. Annotation copyright by Book News, Inc., Portland, OR
Author: Andrew Streitwieser
Publisher: John Wiley & Sons
ISBN:
Category : Science
Languages : en
Pages : 520
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Book Description
Author: Einar Lindholm
Publisher: Springer Science & Business Media
ISBN: 3642455956
Category : Science
Languages : en
Pages : 301
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Book Description
This treatment of molecular and atomic physics is primarily meant as a textbook. It is intended for both chemists and physicists. ·It can be read without much knowledge of quantum mechanics or mathematics, since all such details are explained-. It has developed through a series of lectures at the Royal Institute of Technology. The content is to about 50 % theoretical and to 50 % experimental. The reason why the authors, who are experimentalists, went into theory is the following. When we during the beginning of the 1970's measured photo electron spectra of organic molecules, it appeared to be impossible to understand them by use of available theoretical calculations. To handle hydrocarbons we ( together with C. Fridh ) constructed in 1972 a purely empirical procedure, SPINDO [1] which has proved to be useful, but the extension to molecules with hetero atoms appeared to be difficult. One of us ( L.A.) proposed then another purely ~~E!E!~~! EE2~~~~E~ ( Hydrogenic Atoms in Molecules, HAM/1, unpublished), in which the Fock matrix elements f5..y were parametrized using Slater's shielding concept. The self-repulsion was compensated by a term "-1". The §~~2~~_~ff2E~, HAM/2 [2] , started from the total energy E:. of the molecule. The atomic parts of L used the Slater shielding constants, and the bond parts of E. were taken from SPINDO. The Fock matrix elements Fpv were then obtained from E in a conventional way.
Author: G.H. Wagniere
Publisher: Springer Science & Business Media
ISBN: 3642930506
Category : Science
Languages : en
Pages : 114
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Book Description
These notes summarize in part lectures held regularly at the University of Zurich and, in the Summer of 1974, at the Semi nario Latinoamericano de QUimica Cuantica in Mexico. I am grateful to those who have encouraged me to publish these lec tures or have contributed to them by their suggestions. In particular, I wish to thank Professor J. Keller of the Univer sidad Nacional Autonoma in Mexico, Professor H. Labhart and Professor H. Fischer of the University of Zurich, as well as my former students Dr. J. Kuhn, Dr. W. Hug and Dr. R. Geiger. The aim of these notes is to provtde a summary and concise introduction to elementary molecular orbital theory, with an emphasis on semiempirical methods. Within the last decade the development and refinement of ab initio computations has tended to overshadow the usefulness of semiempirical methods. However, both approaches have their justification. Ab initio methods are designed for accurate predictions, at the expense of greater computational labor. The aim of semiempirical methods mainly lies in a semiquantitative classification of electronic pro perties and in the search for regularities within given classes of larger molecules. The reader is supposed to have had some previous basic instruc tion in quantum mechanics, such as is now offered in many uni versities to chemists in their third or fourth year of study. The bibliography should encourage the reader to consult other texts, in particular also selected publications in scientific journals.
