Iridium tricarbido complexes viatransmetallation with tricarbidomercurials†
Abstract
The reactions of Vaska's complex with [Hg{CCCW(CO)2(L)}2] (L = HB(pz)3, HB(pzMe2)3, pz = pyrazol-1-yl) unexpectedly provide the structurally characterized tetrametallic trans-bis(tricarbido)complex [Ir(HgCl){CCCW(CO)2(L)}2(CO)(PPh3)2].