كيمياء غير عضوية Models_for_Bonding_in_Chemistry

الموضوع في 'قسم الكيمياء' بواسطة chemistry, بتاريخ ‏مارس 20, 2013.

  1. chemistry

    chemistry مستشار كلية العلوم النهرالخالد إداري

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    بسم الله الرجمن الرحيم
    Models_for_Bonding_in_Chemistry
    By
    Valerio Magnasco
    English | 2010 | ISBN: 0470667036 | 232 pages | PDF | 2.12 MB
    A readable little book assisting the student in understandin, in a nonmathematical way, the essentials of the different bonds occurring in chemistry. Starting with a short, self-contained,introduction, Chapter 1 presents the essential elements of the variation approach to either total or second-order molecular energies, the system of atomic units (au) necessary to simplify all mathematical expressions, and an introductory description of the electron distribution in molecules. Using mostly a 2x2 Hückel secular equation, Chapter 2, by far the largest part of the book because of the many implications of the chemical bond, introduces a model of bonding in homonuclear and heteronuclear diatomics, multiple and delocalized bonds in hydrocarbons, and the stereochemistry of chemical bonds in polyatomic molecules, in a word, a model of the strong first-order interactions originating the chemical bond. Chapter 3 the Hückel model of the linear polyene chain is used to explain the origin of band structure in the 1-dimensional crystal. Chapter 4 deals with a simple two-state model of weak interactions, introducing the reader to understand second-order electric properties of molecules and VdW bonding between closed shells. Lastly, in Chapter 5 studies the structure of H-bonded dimers and the nature of the hydrogen bond, which has a strength intermediate between a VdW bond and a weak chemical bond. Besides a qualitative MO approach based on HOMO-LUMO charge transfer from an electron donor to an electron acceptor molecule, a quantitative electrostatic approach is presented yielding an electrostatic model working even at its simplest pictorial level. A list of alphabetically ordered references, author and subject indices complete the book.
     

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    mann1 ،hunar83 و moh@med معجبون بهذا.
  2. كيوتي

    كيوتي Active Member

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    جزاك الله كل خير استاذنا الكريم
     
    أعجب بهذه المشاركة chemistry
  3. MMS

    MMS New Member

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    MMS,

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