2,2 '-bipyridine chelates substituted with alkyne groups, and their Ru(II)complexes

Authors
Pautzsch, T Rode, C Klemm, E
Citation
T. Pautzsch et al., 2,2 '-bipyridine chelates substituted with alkyne groups, and their Ru(II)complexes, J PRAK CH C, 341(6), 1999, pp. 548-551
Citations number
14
Categorie Soggetti
Chemistry
Journal title
JOURNAL FUR PRAKTISCHE CHEMIE-CHEMIKER-ZEITUNG
ISSN journal
09411216 → ACNP
Volume
341
Issue
6
Year of publication
1999
Pages
548 - 551
Database
ISI
SICI code
0941-1216(1999)341:6<548:2'CSWA>2.0.ZU;2-N
Abstract
The palladium-catalyzed cross-coupling of 5-bromo-2,2'-bipyridine and 5,5'- dibromo-2,2'-bipyridine with phenylacecylene leads to 2 and 3, and the reac tion of 5-ethinyl-2,2'-ethinyl-2,2'-bipyridine with 1,4-diiodo-2,5-dibutylo xybenzene provides 4. Ruthenium complexes were prepared by reaction of the ligands 2-4 with [Ru(bpy)(2)Cl-2]. The ligands 2 and 4 show a fluorescence quantum yield near 100%. Further photophysical properties of the ligands an d their ruthenium complexes were given.