Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/60708
Type: Artigo de periódico
Title: Ionization energies, electron affinities, and absorption spectrum of fullerene C-60 calculated with the semiempirical HAM/3 and CNDO/S methods
Author: Takahata, Y
Hara, T
Narita, S
Shibuya, T
Abstract: Ionization energies (PES), excitation energies (UV) and electron affinities (EA) of fullerene C-60 have been calculated with the semiempirical HAM/3 method. The first few ionization energies calculated with HAM/3 show errors as great as 1.4 eV. The HAM/3-CI method has reproduced the observed UV spectrum fairly well. The HAM/3-Delta epsilon method has given fairly good energies for the forbidden lowest singlet and triplet transitions but rather poor results for the allowed transitions. The correlation between calculated PES, UV and EA values is discussed. A method to estimate accurate electron affinity is proposed. The CNDO/S method, on the other hand, has given good values for some of the ionization energies and electron affinities. (C) 1998 Elsevier Science B.V.
Subject: fullerene C-60
HAM/3
ionization energy
electron affinity
absorption spectrum
Country: Holanda
Editor: Elsevier Science Bv
Rights: fechado
Date Issue: 1998
Appears in Collections:Unicamp - Artigos e Outros Documentos

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