Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/76452
Type: Artigo de periódico
Title: A nitric oxide releaser based on the mu-oxo-hexaacetate-bis(4-methylpyridine)triruthenium nitrosyl complex
Author: Toma, HE
Alexiou, ADP
Formiga, ALB
Nakamura, M
Dovidauskas, S
Eberlin, MN
Tomazela, DM
Abstract: The properties of the trinuclear cluster [RU3OAc6(Pic)(2)(NO)]PF6 (Pic = 4-methyl pyridine, Ac = acetate ion) and the photochemical behavior of the corresponding molecular films are reported in this paper. In this compound, the unpaired pi(*) electron from NO and the unpaired electron from the pi-orbitals of the Ru3O unity are strongly coupled; as a consequence, the changes in electronic distribution associated with the several successive redox states promote dramatic effects in the spectroscopic and electrochemical properties of the nitric oxide ligand and the entire complex. NO release has been observed by light irradiation (phi = 0.038 at 365 nm and phi = 0.019 at 468 nm, in acetonitrile solution), changing the original violet color into deep blue. The same behavior has been observed in solid state and in PVA films incorporating this compound, revealing its potential usefulness as NO photoreleaser, as well as for the monitoration of light exposure intensities. (c) 2004 Elsevier B.V. All rights reserved.
Subject: oxo-ruthenium clusters
ruthenium acetate clusters
trinuclear ruthenium clusters
nitric oxide
nitrosyl complexes
Country: Suíça
Editor: Elsevier Science Sa
Rights: fechado
Identifier DOI: 10.1016/j.ica.2004.08.004
Date Issue: 2005
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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