1362816-45-2Relevant academic research and scientific papers
Side-on bound complexes of phenyl- and methyl-diazene
Field, Leslie D.,Li, Hsiu L.,Dalgarno, Scott J.,McIntosh, Ruaraidh D.
, p. 3733 - 3742 (2012)
Treatment of trans-[FeCl2(dmpe)2] with phenylhydrazine and 1 equiv of base afforded the side-on bound phenylhydrazido complex cis-[Fe(η2-NH2NPh)(dmpe)2] +. Further deprotonation of the phenylhydrazido complex afforded the side-on bound phenyldiazene complex cis-[Fe(η2-HN=NPh)(dmpe) 2] as a mixture of diastereomers. Treatment of cis-[RuCl 2(dmpe)2] with phenylhydrazine or methylhydrazine afforded the end-on bound phenylhydrazine or methylhydrazine complexes cis-[RuCl(η1-NH2NHR)(dmpe)2]+ (R = Ph, Me). Treatment of the substituted hydrazine complexes with base afforded the side-on bound phenylhydrazido complex cis-[Ru(η2-NH 2NPh)(dmpe)2]+ as well as the phenyldiazene and methyldiazene complexes cis-[Ru(η2-HN=NR)(dmpe)2] (R = Ph, Me). cis-[RuCl(η1-NH2NHR)(dmpe) 2]+ (R = Ph, Me), cis-[M(η2-NH 2NPh)(dmpe)2]+ (M = Fe, Ru) and cis-[Ru(η2-HN=NPh)(dmpe)2] were characterized structurally by X-ray crystallography. cis-[Ru(η2-HN=NPh)(dmpe) 2] is the first side-on bound phenyldiazene complex to be structurally characterized. In the structure of cis-[Ru(η2-HN= NPh)(dmpe)2], the geometry of the coordinated diazene fragment is significantly nonplanar (CNNH angle 137°) suggesting that the complex is probably better described as a Ru(II) metallodiaziridine than a Ru(0) diazene π-complex.
