Diazenido groups

Schiff bases, diazenido groups, and other nitrogen ligands... 

Most interesting is also Sutton s remark (1993, p. 1016) that all attempts to synthesize nickel complexes with diazenido groups have failed. 

In this type of reaction nucleophilicity of the diazenido group was investigated for some series of Mo and W complexes in which the diphosphine ligands had 4-substituted aryl groups (10-31) with Y = CF3, Cl, H, CH3 and CH3O, i.e., a series of substituents with increasing nucleophilicity (Hussain et al., 1986). 

Hussain, H., Leigh, G.J., Modh-Ali, H. and Pickett, C.J. Mechanism of alkylation of alkyldiazenido-complexes of molybdenum(II) and tungsten(II) influence of metal and co-ligands on the nucleophilicity of a diazenido-group J.Chem.Soc. Dalton Trans., (1986), 1473-1477... 

The diazenido complex, [Tc(N=NAr)(S2CNMe2)2(PPh3)] (Ar = p-C H CX) (216), results from addition of NaS2CNMc2 to [TcCl(N=NAr)2(PPh3)2] in methanol. It contains a cis orientation of phosphine and diazenido groups in... 

The principal interest of diazenido complexes of molybdenum(II) is that they are formed by the alkylation or protonation of coordinated dinitrogen. They thus represent a unique group of... 

Alkylation of fmns-[M(N2H)X(dppe)2] offers a parallel route through to these same products (102), and is a unique pathway to diazenido complexes containing a (rans-fluoro or chloro group. 

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