Croatica Chemica Acta, Vol. 42 No. 1, 1970.
Short communication, Note
Calculation of Collective Modes in rt-electron Systems with RPA Method
B. Lukman
; Department of Chemistry, University of Ljubljana and Chemical Institute Boris Kidric, Ljubljana, Slovenia, Yugoslavia
J. Koller
; Department of Chemistry, University of Ljubljana and Chemical Institute Boris Kidric, Ljubljana, Slovenia, Yugoslavia
E. Zakrajšek
; Department of Chemistry, University of Ljubljana and Chemical Institute Boris Kidric, Ljubljana, Slovenia, Yugoslavia
M. Žaucer
; Department of Chemistry, University of Ljubljana and Chemical Institute Boris Kidric, Ljubljana, Slovenia, Yugoslavia
A. Ažman
; Department of Chemistry, University of Ljubljana and Chemical Institute Boris Kidric, Ljubljana, Slovenia, Yugoslavia
Abstract
The question of the existence of collective modes in molecular systems
is currently attracting much attention both from the theoretical1 and experimental1• 2 point of view. In this study we used Random-Phase-Approximation~ to calculate the transition energies and intensities of three rt-electron systems: benzene, naphthalene and 1,3,5,7,9-decapentaene. Although it is an oversimplification in the framework of RPA the collective modes are defined as the modes the intensities of which are greatly enhanced in comparison with single transitions.
Keywords
Hrčak ID:
197586
URI
Publication date:
1.4.1970.
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