A wavefunction model to chemical bonding

نویسندگان

چکیده

In this paper we give a brief survey on some specific aspects of wavefunction model for chemical bonding which are connected to or have been motivated in part by the work late István Mayer and colleagues. After description early models as reflected Mayer's works, naturally leading electron densities, discuss localized molecular orbitals, summarize initiatives applications. The concept Chemical Hamiltonian, introduced Mayer, its extensions classical more advanced connections will be discussed. twofold motivating role development earliest, ab initio level macromolecular linear scaling methods, giving proven “ab quality” protein energy results adjustable density matrix assembler method, other fragment advances also pointed out.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

On an Ionic Approximation to Chemical Bonding

It is shown how previously reported bond energy equations (Van Hooydonk, 1973) can be re­ generated starting from the assumptions (i) that the valence-orbital energy of an element in a bond can be expressed as a function of its occupancy number (Iczkowski-Margrave, 1961) and (ii) that the potential around an atom in a bond vanishes as soon as its valence orbital is doubly occupied (Ferreira, 19...

متن کامل

Chapter 1: Chemical Bonding

2 Different Types of Bonds 7 2.1 Covalent Bonding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.2 Ionic Bonding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.2.1 Madelung Sums . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2.3 Metallic Bonding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2.4 Van der Waals Bonds . . . . . . . . . . . ....

متن کامل

Compton Spectroscopy and Chemical Bonding

In this article we show with the help of two examples how Compton spectroscopy may be used to study the effect of chemical bonding in materials as diverse as a molecular crystal and a high temperature superconductor. Compton spectroscopy has a long history as an investigative method in condensed matter physics and in fact the realisation that the Compton profile is sensitive to the effects of c...

متن کامل

Chemical bonding involving d-orbitals.

The landmark 1954 J. Chem. Soc. paper by Craig et al. exploring the role of d-orbitals in chemical bonding is discussed. This paper set the agenda for discussions that continue until the present about topics in inorganic chemistry such as hypervalency, arguably the most significant bonding phenomenon to differentiate the chemistry of the 2p main group elements from their heavier congeners.

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: International Journal of Quantum Chemistry

سال: 2021

ISSN: ['1097-461X', '0020-7608']

DOI: https://doi.org/10.1002/qua.26686