Group VI metal carbonyl complexes of (amino)spirocyclic cyclotriphosphazenes

Abstract

The reactions of (amino)spirocyclotriphosphazenes, N₃P₃(NMe₂)₄MNHCH₂CH₂NH) (1) and N₃P₃(NMe₂MNHCH₂CH₂CH₂NH)(2) with molybdenum-and tungsten-hexacarbonyls give Complexes of the type[M(CO)₄L)](L=1 or 2) in which the phosphazenes act as bidentate chelating ligands via one of the phosphazene ring nitrogen atoms and one of the nitrogen atoms of the diaminoalkane moiety.