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Electronic band theory, basic concepts

The basic concepts of the electronic band structure theory introduced so far can be easily extended to 2D and 3D systems. As an example of a 2D system, let us consider the rectangular lattice (14) with one AO x per site. The BOs associated with this AO are given by equation (13)... [Pg.1290]

Vibronic-coupling theory has been a well established area of research since many years. The basic elements of the theory are the concept of dia-batic electronic states, the normal-mode description of vibrational motion, and the application of symmetry selection rules to derive appropriate model Hamiltonians. The applications of vibronic-coupling theory cover the full range of molecular spectroscopy, including, in particular, optical absorption and emission and photoelectron spectroscopy. Typical spectroscopic phenomena associated with vibronic interactions are the appearance of nominally forbidden electronic bands, the excitation of nontotally symmetric modes, or unusual and complex vibronic fine structures of electronic spectra. A fairly comprehensive and up-to-date exposition of vibronic-coupling theory is provided by the monograph of Bersuker and Polinger. ... [Pg.324]

Keywords Basic concepts Band theory Electronic effects Electronegativity Steric effects... [Pg.63]

See other pages where Electronic band theory, basic concepts is mentioned: [Pg.484]    [Pg.57]    [Pg.498]    [Pg.133]    [Pg.151]    [Pg.412]    [Pg.6]    [Pg.547]    [Pg.218]    [Pg.26]    [Pg.180]    [Pg.141]    [Pg.3167]    [Pg.614]    [Pg.11]   
See also in sourсe #XX -- [ Pg.151 , Pg.152 , Pg.153 , Pg.154 , Pg.155 , Pg.156 , Pg.157 , Pg.158 , Pg.159 , Pg.160 , Pg.161 , Pg.162 , Pg.163 , Pg.164 , Pg.165 ]



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