Hydrazido. diazenido. and diazene complexes

With the authenticated singly bent diazenido complexes, protonation (or, more generally, electrophilic attack) does occur at as predicted by the studies described above, to yield hydrazido(2-) complexes (39, 57-59, 72, 97, 114, 324) and protonation of doubly bent species gives diazene complexes (201, 218). 

R(H)N—N ], and diazenido (R—N=N ) [68, 71, 72] ligands have been isolated and characterized. Among them, the amido/imido complexes are related by a reduction step. Also, cleavage of the N=N bond of diazene or isodiazene/hydrazido(2—) ligands, to produce imido or amido derivatives, requires several Fl+/e transfer steps. 

In the family of compounds with the Mo2(cp)2(jU.-SMe)3 core, complexes with ammine (NH3) [67, 68], amido (NH2 ) [67-69], imido (NH ") [68, 70], substituted diazene (R—N=N—H) or isodiazene/hydrazido (2—) [R(H)N=N/ R(H)N—N ], and diazenido (R— N=N ) [68, 71, 72] ligands have been isolated and characterized. Among them, the amido/imido complexes are related by a reduction step. Also, cleavage of the N=N bond of diazene or isodiazene/hydrazido (2—) ligands, to produce imido or amido derivatives, requires several IT+/e transfer steps. 

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