Vanadium complexes hydrazido

Valinomycin metal complexes, 969 Vanadium complexes acetylacetone exchange reactions, 380 1,4-diaza-l,3-butadiene, 209 dioxygen mononuclear, 321 hydrazido(2-), 148 hydroxamic adds, 506 phthalocyanines, 865 polypyrazolylborates, 248 porphyrins, 824 dioxygen adducts, 325... 

We have studied the reactions of H3(NS3) with vanadium more thoroughly than those with any other metal, starting from the known [V(0)(NS3)]. Figure 3 shows that the V(NS3) site will support imide, hydrazido, hydrazine, ammonia and nitride ligands, forming multiple bonds to nitrogen species that may be involved in the later stages of reduction of N2. Several of these complexes are... 

Recrystallization of 40d in the presence of A TV-dimethylbydrazine affords the N,N-dimethylhydrazine-bridged dinuclear vanadinm(V) hydrazido complex 40d-DMH-40d. The single-crystal X-ray structure determination of 40d-DMH-40d confirms that two 40d units are bridged by 7V,A -dimethylhydrazine to form the 2 1 complex in anti-configuration, wherein each vanadium center is a hexacoordi-nate geometry (Fig. 3.30b) [114]. This hydrazido complex 40d-DMH-40d has the near-linear V(l)-N(2)-N(3) angles of 171.8(7) and 174.0(7)° with the V(l)-N(2) distances of 1.663(7) and 1.690(7) A, respectively. 

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