Synthesis and Photophysical Properties of New 2,2′‐Bipyridine‐Bridged Bis[ruthenium(II)tris‐2,2′‐bipyridine] Complexes | Zendy

König Burkhard | Zendy; Zieg Harald | Zendy; Cola Luisa De | Zendy; Balzani Vincenzo | Zendy; Nimtz Manfred | Zendy

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Synthesis and Photophysical Properties of New 2,2′‐Bipyridine‐Bridged Bis[ruthenium(II)tris‐2,2′‐bipyridine] Complexes

Author(s) -

König Burkhard,

Zieg Harald,

Cola Luisa De,

Balzani Vincenzo,

Nimtz Manfred

Publication year - 1997

Publication title -

chemische berichte

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.667

H-Index - 136

eISSN - 1099-0682

pISSN - 0009-2940

DOI - 10.1002/cber.19971300413

Subject(s) - chemistry , ruthenium , 2,2' bipyridine , bipyridine , ligand (biochemistry) , tris , excited state , electrochemistry , 4,4' bipyridine , stereochemistry , medicinal chemistry , photochemistry , crystallography , molecule , crystal structure , organic chemistry , catalysis , electrode , hydrogen bond , biochemistry , physics , receptor , nuclear physics

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.

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