Effects of electron correlations in conjugated organic molecules and solids

Ramasesha, S. (1989) Effects of electron correlations in conjugated organic molecules and solids Journal of Molecular Structure, 194 . pp. 149-162. ISSN 0022-2860

Full text not available from this repository.

Official URL: http://linkinghub.elsevier.com/retrieve/pii/002228...

Related URL: http://dx.doi.org/10.1016/0022-2860(89)80077-8

Abstract

The discrepancies between the non-interacting models and experimental results for conjugated systems is highlighted in this brief review. The interacting model hamiltonians correctly give the forbidden singlet state below the optical gap in polyenes and also explain both the nonvanishing optical gap in polyacetylenes and the vanishing optical gap in symmetric cyanine dyes. The negative spin densities in polyene radicals is also understood in terms of a correlated picture. The role of electron-electron interactions in other strongly correlated systems, such as polydiacetylene and mixed and segregated stack charge transfer solids, are also briefly discussed.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
ID Code:39506
Deposited On:13 May 2011 09:42
Last Modified:13 May 2011 09:42

Repository Staff Only: item control page