Bis(diphenylphosphino)acetonitrile oxides, -sulfides and -imines: Their formation and structural features, and the remarkable structures of two lithiated derivatives

The bis(phosphinoxides), -sulfides and -imines of bis(diphenylphosphino)acetonitrile (dppmCN) were prepared and structurally characterized. The mono-lithio derivatives of the PO and PS systems are remarkably structurally different.