Dalton Transactions

Canopied trans-chelating bis (N-heterocyclic carbene) ligand: synthesis, structure and catalysis

BP Morgan, GA Galdamez, RJ Gilliard Jr…

Index: Morgan, Brad P.; Galdamez, Gabriela A.; Gilliard Jr., Robert J.; Smith, Rhett C. Dalton Transactions, 2009 , # 11 p. 2020 - 2028

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Citation Number: 28

Abstract

The terphspan scaffold was employed to support a bis (N-heterocyclic carbene) ligand (1) that provides a m-terphenyl canopy over one side of its metal complexes. Single-crystal X- ray diffraction studies on a silver complex of {[Ag (1)] AgBr2} 2 revealed an unusual tetranuclear silver core with a Ag–Ag bond distance of 3.0241 (8) Å with 1 as a trans- chelating ligand (C–Ag–C= 171°). A preliminary X-ray structure of pseudo-square planar [ ...