Rapid phosphorus–carbon bond cleavage in bis(diphenylphosphino)methane under very mild conditions: a one-step synthesis of µ-PPh2, µ-Ph2PCH2PPh2 binuclear CoI and NiI carbonyls directly from CoII and NiII salts
Abstract
CoII and NiII react rapidly with NaBH4 in the presence of bis(diphenylphosphino)methane (dppm) under CO at or below (0 °C) room temperature to yield complexes of the types Co2(µ-H)(µ-PPh2)(µ-dppm)(CO)4, Co2(µ-H)(µ-PPh2)(µ-dppm)2(CO)2, and [Ni2(µ-PPh2)(µ-dppm)2(CO)2]X (X = Cl, BPh4).