Complexes of P(III)-phosphocavitands with Groups VI and VII transition metal carbonyls

A study has been made of the interaction between the new type of cavitands, P(III)-phosphocavitands, and the Cr, Mo, W, and Mn carbonyl complexes. The possibility has been shown for the directed coordination of all or some phosphorus atoms of the cavitand molecules with metals. The effect of the substituents at the phosphorus atoms in the macrocycles on the process selectivity has been revealed. The first metallocomplexes of phosphocavitands containing trivalent phosphorus atoms have been obtained.