Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 24, Issue 23, Pages 6094-6104Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201705757
Keywords
coinage metals; metallophilicity; N-heterocyclic carbenes; photoluminescence; silver
Categories
Funding
- DFG [SFB/TRR 88]
- Helmholtz research school Energy-Related Catalysis
Ask authors/readers for more resources
The hybrid ligand 3-(2,2'-bipyridine-6-ylmethyl)-1-mesityl-1H-imidazolylidene (NHCBipy) featuring both carbene and N-donor sites, was selectively complexed with various d(10) metal cations in order to examine its coordination behavior with regard to homo and heterometallic structures. Respective silver complexes can be obtained by the silver oxide route and are suitable transmetallation reagents for the synthesis of gold(I) compounds. Starting from the mononuclear complexes [(NHCBipy)AuCl], [(NHCBipy)Au(C6F5)] and [(NHCBipy)(2)Au][ClO4], open-chain as well as cyclic heterobimetallic complexes containing Cu+, Ag+, Zn2+, Cd2+, and Hg2+ were synthesized. Furthermore, the homobimetallic species [(NHCBipy)(2)M-2][ClO4](2) (M = Cu, Ag) were obtained. All bimetallic compounds were fully characterized including single-crystal X-ray analysis. Their photoluminescence (PL) properties were investigated in the solid state at temperatures between 15 and 295K and compared with those of the mononuclear species. There is a clear difference in PL properties between the open chain and the cyclic heterobimetallic complexes. The latter species show different PL properties, depending on the metals involved. In addition, collision-induced dissociation (CID) experiments were performed on electrosprayed cations of the cyclic heterobimetallic compounds, to compare the metal binding at the carbene and N-donor sites.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available