Synthesis of Well-Defined N-Heterocyclic Carbene Silver(I) Complexes
dataset
posted on 2005-12-19, 00:00 authored by Pierre de Frémont, Natalie M. Scott, Edwin D. Stevens, Taramatee Ramnial, Owen C. Lightbody, Charles L. B. Macdonald, Jason A. C. Clyburne, Colin D. Abernethy, Steven P. NolanA series of N-heterocyclic carbene (NHC)AgCl complexes [NHC = SIMes (1), IPr (2), SIPr
(3), IPrMe (4), IMe (5), ICy (6), IAd (7), IsB (8), IDD (9), and TPh (10)] have been synthesized
through reaction of the imidazolium chloride salts with Ag2O or by direct metalation of the
corresponding imidazol-2-ylidene carbene in the presence of AgCl. All silver(I) complexes
[(SIMes)AgCl] (11), [(IPr)AgCl] (12), [(SIPr)AgCl] (13), [(IPrMe)AgCl] (14), [(IMe)AgCl] (15),
[(ICy)AgCl] (16), [(IAd)AgCl] (17), [(IsB)AgCl] (18), [(IDD)AgCl] (19), and [(TPh)AgCl] (20)
have been spectroscopically and structurally characterized. The structure of these silver
complexes is dependent on the halide and the solvent used for the synthesis. Adjusting these
parameters has led to the previously reported complex, [(IMes)2Ag]+[AgCl2]- (21), and to a
new silver complex, [(IMes)2Ag]+2[Ag4I6]2- (22).
