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Compromise Between Conjugation Length and Charge-Transfer in Nonlinear Optical Monocyclopentadienyliron Complexes

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Resumo:We study the conjugation-length dependence of the first hyperpolarizability in a series of complexes of general formula [FeCp(P_P)(NC{SC4H2}nNO2)][PF6] (P_P=dppe, (+)-diop; n=1 3). Spectroscopic data are used in order to evaluate the effect of the type of phosphine coligand and the length of the conjugated ligand on the second-order NLO response of the complexes, which is compared to the observations for the p-benzonitrile analogues. Cyclic voltammetry is also used as a tool for a better understanding of the electronic factors responsible for the NLO behaviour of the compounds studied in this work.
Autores principais:Mendes, Paulo J. G.
Assunto:Iron complexes nonlinear optics
Ano:2008
País:Portugal
Tipo de documento:palestra
Tipo de acesso:acesso restrito
Instituição associada:Universidade de Évora
Idioma:inglês
Origem:Repositório Científico da Universidade de Évora

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