Metastable excited state and electronic structure of [Ru(NH3)(5)NO](3+) and [Ru(NH3)(4)(-)(OH)NO](2+)

Metastable excited state and electronic structure of [Ru(NH3)(5)NO](3+) and [Ru(NH3)(4)(-)(OH)NO](2+)

Autor Da Silva, S. C. Google Scholar
Franco, D. W. Google Scholar
Instituição Universidade Federal de São Paulo (UNIFESP)
Resumo Light-induced metastable excited states of complexes [RuO(NH3)(5)NO](3+) and [Ru(NH3)(4)(OH)NO](2+) were investigated by FTIR spectroscopy. Both systems showed only one metastable excited state (MSI), with decay temperatures higher than 200 K. MSI formation occurs upon irradiation in the visible band (450-500 nm). According to ab initio density functional theory (DFT) molecular orbital analysis and ZINDO semi empirical C.I. calculation, MSI originates from the charge transfer transition 2b(2)(dxy) --> 7e(pi*NO). Since irradiation in regions other than the charge transfer transition causes fast depopulation of the metastable excited state, this light-induced decay is tentatively assigned to light absorption by the systems in the excited state. (C) 1999 Elsevier Science B.V. All rights reserved.
Palavra-chave nitrosyl
ruthenium
DFT
metastable state
electronic structure
Idioma Inglês
Data de publicação 1999-07-01
Publicado em Spectrochimica Acta Part A-molecular and Biomolecular Spectroscopy. Oxford: Pergamon-Elsevier B.V., v. 55, n. 7-8, p. 1515-1525, 1999.
ISSN 1386-1425 (Sherpa/Romeo, fator de impacto)
Publicador Elsevier B.V.
Extensão 1515-1525
Fonte http://dx.doi.org/10.1016/S1386-1425(98)00333-3
Direito de acesso Acesso restrito
Tipo Artigo
Web of Science WOS:000081025900021
Endereço permanente http://repositorio.unifesp.br/handle/11600/26106

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