Optomechanical trans-to-cis and cis-to-trans isomerization and unusual photophysical behavior of fac-[Re(CO)(3)(phen)(CNstpy)](+)
| Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
|---|---|
| Data(s) |
22/10/2013
22/10/2013
2012
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| Resumo |
Unusual high photoassisted quantum yields for cis-to-trans (phi(254) (nm) = 0.27 +/- 0.05) isomerization of CNstpy coordinated to fac-[Re(CO)(3)(phen)(CNstpy)](+) were determined along with trans-to-cis ones (phi(313) (nm)= 0.58 +/- 0.02; phi(365) (nm)= 0.61 +/- 0.06; phi(404) (nm) = 0.42 +/- 0.02). Additionally, in contrast to other similar rhenium(I) complexes, the cis photoproduct is quasi non-emissive and comparable to the trans-complex. The cis-to-trans photoisomerization is due to the deactivation from the ILcis-CNstpy excited state in competition to the usual (MLCTRe -> phen)-M-3 luminescence. These efficient cis to trans and trans to cis photoisomerization can be conveniently used in light powered molecular machines. (C) 2012 Elsevier B.V. All rights reserved. Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) |
| Identificador |
INORGANIC CHEMISTRY COMMUNICATIONS, AMSTERDAM, v. 20, n. 2, supl. 4, Part 1-2, pp. 105-107, JUN, 2012 1387-7003 http://www.producao.usp.br/handle/BDPI/35438 10.1016/j.inoche.2012.02.028 |
| Idioma(s) |
eng |
| Publicador |
ELSEVIER SCIENCE BV AMSTERDAM |
| Relação |
INORGANIC CHEMISTRY COMMUNICATIONS |
| Direitos |
closedAccess Copyright ELSEVIER SCIENCE BV |
| Palavras-Chave | #RHENIUM #PHOTOCHEMISTRY #PHOTOPHYSICS #TRUE QUANTUM YIELD #STILBENE-LIKE LIGAND PHOTOISOMERIZATION #DIIMINE COMPLEXES #LUMINESCENCE #PHOTOCHEMISTRY #AZOBENZENE #PHOTOREGULATION #SYSTEMS #CHEMISTRY, INORGANIC & NUCLEAR |
| Tipo |
article original article publishedVersion |
