2-(1,3-di-1-(2,4,6-mesityl)imidazol-2-ylidene)phenylphosphinidene
P,P-bis(borane) complex
Arduengo, A. J., III; Carmalt, C. J.; Clyburne, J. A. C.; Cowley, A. H.; Pyati, R. J. Chem. Soc., Chem. Commun., 1997,  981.

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