Synthesis and properties of diads based on tetra-aryl porphyrins and ruthenium bis-terpyridine-type complexes

Authors
Dixon, IM Collin, JP
Citation
Im. Dixon et Jp. Collin, Synthesis and properties of diads based on tetra-aryl porphyrins and ruthenium bis-terpyridine-type complexes, J PORPHYR P, 5(7), 2001, pp. 600-607
Citations number
28
Categorie Soggetti
Chemistry
Journal title
JOURNAL OF PORPHYRINS AND PHTHALOCYANINES
ISSN journal
10884246 → ACNP
Volume
5
Issue
7
Year of publication
2001
Pages
600 - 607
Database
ISI
SICI code
1088-4246(200107)5:7<600:SAPODB>2.0.ZU;2-Q
Abstract
Four diads consisting of a free-base or zinc aryl-porphyrin associated with two ruthenium(II) bis(terdentate) complexes (non-cyclometallated Ru(N6) or cylometallated Ru(N5C)) have been synthesized. The strong electron-withdra wing properties of the Ru(N6) as compared to the Ru(NSC) complex have been illustrated by their electrochemical and spectroscopic properties. Emission spectra of the diads and the reference compounds have shown that very effi cient fluorescence quenching occurs, probably by energy transfer processes from the porphyrin to the (MLCT)-M-3 excited state of the ruthenium unit. C opyright (C) 2001 John Wiley & Sons, Ltd.