726174-33-0Relevant academic research and scientific papers
Dinuclear N-heterocyclic carbene complexes of silver(I), derived from imidazolium-linked cyclophanes
Baker, Murray V.,Brown, David H.,Haque, Rosenani A.,Skelton, Brian W.,White, Allan H.
, p. 3756 - 3764 (2007/10/03)
The synthesis of four new silver complexes of bidentate N-heterocyclic carbenes, derived from imidazolium-linked cyclophanes, has been achieved via a simple complexation reaction of the imidazolium-linked cyclophanes with the basic metal source Ag2O. The cyclophane structures contain two imidazolyl links between ortho-, meta- and mixed ortho/meta-substituled aromatic rings. The new silver carbene systems are thermally stable and have been characterised by NMR spectroscopy and X-ray crystallography. Three of the complexes have a dimeric structure of the form [L2Ag 2]2+ in the solid state that is rigid on the NMR timescale in solution. The fourth complex has a neutral structure of the form [L(AgBr)2], the NMR studies suggesting some lability of the L-Ag bonding in solution.
