An electron-rich olefin as a source of co-ordinated carbene; synthesis of trans-PtCl2[C(NPhCH2)2]PEt3

Abstract
Interaction of the appropriate electron-rich olefin and chloride bridged PtII dimer has yielded the unreactive trans-PtII carbene complex (I) which is belived to isomerise thermally to the cis-isomer; the structure of the trans-complex is established inter alia by a single crystal X-ray analysis.