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 ph
osphorus atoms of the cavitand molecules with metals. The effect of the sub
stituents at the phosphorus atoms in the macrocycles on the process selecti
vity has been revealed. The first metallocomplexes of phosphocavitands cont
aining trivalent phosphor-as atoms have been obtained. (C) 2001 Elsevier Sc
ience B.V. All rights reserved.