Synthesis and fluorescence behavior of novel Ru(bpy)(3)-porphyrin conjugates

Authors
Lintuluoto, JM Borovkov, VV Inoue, Y
Citation
Jm. Lintuluoto et al., Synthesis and fluorescence behavior of novel Ru(bpy)(3)-porphyrin conjugates, TETRAHEDR L, 41(24), 2000, pp. 4781-4786
Citations number
10
Categorie Soggetti
Chemistry & Analysis","Organic Chemistry/Polymer Science
Journal title
TETRAHEDRON LETTERS
ISSN journal
00404039 → ACNP
Volume
41
Issue
24
Year of publication
2000
Pages
4781 - 4786
Database
ISI
SICI code
0040-4039(20000615)41:24<4781:SAFBON>2.0.ZU;2-J
Abstract
No emission of photoexcited Ru(bpy)(3) was found in Fe and Mn porphyrin-Ru( bpy)(3) conjugates. In the case of free-base and Zn porphyrin-Ru(bpy)(3) co njugates, quenching of Ru(bpy)(3) emission and the appearance of considerab le free-base and Zn porphyrin emissions were found. The excitation spectra of these emissions revealed however that these emissions originate from the corresponding excitation of free-base and Zn porphyrin moieties. These obs ervations suggest efficient intramolecular electron transfer from the photo excited Ru(bpy)(3) moiety to the free-base, Zn, Fe and Mn porphyrins. (C) 2 000 Elsevier Science Ltd. All rights reserved.