Transition metal carbene complexes of platinum can be prepared by heating platinum bromide with the imidazolium salt NHC precursors and sodium acetate in dimethyl sulfoxide.1
Muehlhofer M.; Strassner T.; Herdtweck E.; Herrmann W.A. (2002). "Synthesis and structural characterization of novel bridged platinum(II) biscarbene complexes". Journal of Organometallic Chemistry. 660 (2): 121–126. doi:10.1016/S0022-328X(02)01670-4. /wiki/Journal_of_Organometallic_Chemistry ↩