ISSN:
0009-2940
Keywords:
Ruthenium
;
2,2′-Bipyridines
;
Redox chemistry
;
Fluorescence spectroscopy
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
We have synthesized a new type of tris-2,2'-bipyridine ligand with 4,4'- and 6,6'-disubstituted 2,2'-bipyridine (bpy) units. The terminal 4,4'-and 6,6'-disubstituted 2,2'-bipyridine moieties are selectively coordinated by Ru(bpy)2 (bpy = 2,2′-bipyridine), whereas the central 2,2′-bipyridine ligand does not participate in any metal ion coordination. The two Ru(bpy)3 units of 7 and 8 do not interact appreciably, as is evident from their electrochemical and photophysical data. The lifetime of the excited state of compound 7 at 77 K is similar to that of Ru(bpy)2(4,4′-dimethyl-2,2′-bipyridine), whereas that of compound 8 under the same conditions is comparatively long.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19971300413
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