Synthesis and reactions of [(OC)3Fe(µ-dppm)(µ-CO)Pt(PPh3)] with acetylenes or allene: crystal structures of [(OC)3Fe(µ-dppm)(µ-CO)Pt(PPh3)], [(OC)2Fe(µ-dppm){µ-σ:η3-C(O)C2H2}Pt(PPh3)], and [(OC)3Fe(µ-dppm){µ-CH2C(
CH2)}Pt(PPh3)](dppm = Ph2PCH2PPh2)
Abstract
[(OC)3Fe(µ-dppm)(µ-CO)PtCl2](dppm = Ph2PCH2PPh2) is reduced by NaBH4 in the presence of PPh3 to give the electron-rich [(OC)3Fe(µ-dppm)(µ-CO)Pt(PPh3)], which reacts with acetylene(s) or allene under mild conditions to give the title compounds and is protonated to give a hydride.