Busca avançada
Ano de início
Entree
(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Synthesis, characterization and photoelectrochemical performance of a tris-heteroleptic ruthenium(II) complex having 4,7-dimethyl-1, 10-phenanthroline

Texto completo
Autor(es):
Carvalho, F. [1] ; Liandra-Salvador, E. [1] ; Bettanin, F. [1] ; Souza, J. S. [1] ; Homem-de-Mello, P. [1] ; Polo, A. S. [1]
Número total de Autores: 6
Afiliação do(s) autor(es):
[1] Fed Univ ABC, BR-09210580 Santo Andre - Brazil
Número total de Afiliações: 1
Tipo de documento: Artigo Científico
Fonte: Inorganica Chimica Acta; v. 414, p. 145-152, APR 1 2014.
Citações Web of Science: 7
Resumo

The novel cis-{[}Ru(Me-2-phen)(dcbH(2))(NCS)(2)] complex was prepared using a one-pot route and characterized based on H-1 NMR, FTIR, absorption and emission spectra. The properties of this complex were compared with those of cis-{[}Ru(R-2-phen)(dcbH(2))(NCS)(2)], where R = Ph or H, to establish a relationship between the donor/acceptor character of the R substituent and the observed behavior of these compounds. Computational methods were also employed to gain a comprehensive understanding of this relationship. By using electron-donating/accepting substituents, it was possible to tune both the ground and excited states of the cis-{[}Ru(R-2-phen)(dcbH(2))(NCS)(2)] complexes. This compound is capable of sensitizing the TiO2 surface and efficiently converting the sunlight into electricity. In comparison to cis{[}Ru(Ph-2-phen)(dcbH(2))(NCS)(2)] it is observed that the presence of phenyl groups provide higher efficiency. The conversion efficiency was improved in comparison to cis-{[}Ru(phen)(dcbH(2))(NCS)(2)]. This increase in efficiency is attributed to an increase in electron density, thus favoring electron transfer to TiO2. (C) 2014 Elsevier B. V. All rights reserved. (AU)

Processo FAPESP: 07/05370-0 - Estudo químico-quântico de corantes e de complexos de metais de transição
Beneficiário:Paula Homem-de-Mello
Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores
Processo FAPESP: 11/11717-8 - Investigações fotoquímicas e fotofísicas de compostos tris-heterolépticos de rutênio(II)
Beneficiário:André Sarto Polo
Modalidade de apoio: Auxílio à Pesquisa - Regular