ChemInform Abstract: A Study of High Oxidation State Complexes of the Type (W(η5‐C5Me5)Me2X)2(μ‐N2), Including X‐Ray Structures of (W(η5‐C5Me5)Me2(OC6F5))2(μ‐N2) and (W(η5‐C5Me5)Me2(S‐2,4,6‐C6H2Me3))2(μ‐N2).

Abstract

ChemInform Abstract A high yield route to the bridging dinitrogen complex (III) consists of the reduction of (I) by sodium amalgam in the presence of N2. This complex is regarded as high valent metal hydrazido (4-) complex. It reacts with relatively strong acids to give products such as (V). It is also possible to prepare derivatives in which two of the three methyl groups are replaced by oxygen ligands as demonstrated in (X). X-ray analyses of (Vb) (space group P1, Z=1) and (VIIa) (P3221, Z=3) show that the complexes have structures that are similar to that of (III).