Photochemical and photophysical investigation of ruthenium(II) tris-heteroleptic compounds

• Grant number: 11/11717-8
• Support Opportunities: Regular Research Grants
• Start date: January 01, 2012
• End date: December 31, 2013
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Inorganic Chemistry
• Principal Investigator: André Sarto Polo
• Grantee: André Sarto Polo
• Host Institution: Centro de Ciências Naturais e Humanas (CCNH). Universidade Federal do ABC (UFABC). Santo André , SP, Brazil
• City of the host institution: Santo André

Abstract

Ruthenium(II) polypyridyl compounds have wide and intense absorption on the visible region of the spectrum, which favors the light harvesting and due to this have been widely employed for solar energy conversion processes. These metallic complexes can be designed in such way to execute useful functions. For instance, the photoinduced electron transfer to semiconductor conducting band, which is the first step for solar light conversion into electricity or in higher energy content substances. A series of these compounds that have been gaining attention is the ruthenium(II) tris-heteroleptic compounds, since these compounds allow the evaluation of modification on one of their ligand reflects on their properties. This proposal aims to synthesize and characterize some ruthenium(II) tris-heteroleptic compounds like cis-[Ru(GA-bpy)(R2-phen)(X)2]; GA = anchoring groups, such as carboxilic acid, R = electron donnors or acceptor substituents and X = Cl- or NCS-, as well as conduct investigation on photochemistry, photophysics and electrochemistry, in order to rationalize the effect of the substituent of the 1,10-phenanthroline on these properties. By this way it will be possible to understand the behavior of the species prepared and modulate their properties aiming a better efficiency on their function on the process of light into electrical or chemical conversion. By this way it is possible to joint academic science to the preparation of devices that can be a commercial product in longer timescale. (AU)

Scientific publications

(The scientific publications listed on this page originate from the Web of Science or SciELO databases. Their authors have cited FAPESP grant or fellowship project numbers awarded to Principal Investigators or Fellowship Recipients, whether or not they are among the authors. This information is collected automatically and retrieved directly from those bibliometric databases.)

CARVALHO, F.; LIANDRA-SALVADOR, E.; BETTANIN, F.; SOUZA, J. S.; HOMEM-DE-MELLO, P.; POLO, A. S.. Synthesis, characterization and photoelectrochemical performance of a tris-heteroleptic ruthenium(II) complex having 4,7-dimethyl-1, 10-phenanthroline. Inorganica Chimica Acta, v. 414, p. 145-152, APR 1 2014. (11/11717-8)