Preparation of trihydridostannyl complexes of rhenium stabilised by isocyanide ligands

The preparation of mixed-ligand trihydridestannyl complexes [Re(SnH3)(CO)2(CNR)nL3−n] (n = 1, 2) with carbonyl, isocyanide and phosphite, and their spectroscopic and crystallographic characterisation, are described. Reaction of the tin hydride complexes with CO2 leading to dinuclear OH-bridging bis(formate) derivatives [Re{Sn(OC(H)O)2(μ-OH)}(CO)2(CNR)nL3−n]2 is also reported.