摘要:
The reaction. of white phosphorus with the coordinatively unsaturated [M(CO)(3)(PR3)(2)] complexes (M = Mo, W; R = Cy, Pr-i) yields the compounds [M(CO)(3)(PR3)(2)(eta(1)-P-4)] in, which the P-4-tetrahedron is end-on bonded to the metal. In. the same manner reacts Ar'C=P (Ar' = C6H2Bu3t-2,4,6) with this complex to give [W(CO)(3)(PCy3)(2)(eta(1)-P=CAr')]. The X-ray structures of the products are discussed, and for the P-4-unit in [W(CO)(3)(PCy3)(2)(eta(1)-P-4)] the librational analysis was performed to correct their translational and rotational motions.