Synthesis and characterization of mononuclear bis[organohydrazido(2-)]molybdenum(VI) complexes. Crystal structures of [Mo(NNMePh)2(acac)2] and [Mo(NNPh2)2(acac)2]

CECILIA CAROLINA MANZUR NAZAL, Carlos Bustos, David Carrillo, Francis Robert, Pierre Gouzerh

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Abstract

In the presence of Na2SO4, 1-methyl-1-phenylhydrazine and 1,1-diphenylhydrazine react with [MoO2(acac)2] to yield [Mo(NNMePh)2(acac)2] (1) and [Mo(NNPh2)2(acac)2] (2), respectively. Crystals of 1 are triclinic, space group P1̄, with unit cell dimensions a=9.780(6), b=11.134(11), c=13.504(7) Å, α=110.69(6), β=95.71(5), γ=111.70(7)° and Z=2. The structure was solved using 4317 unique observed reflections; the refinement of 299 variables gave R and Rw values of 0.059 and 0.067, respectively. Crystals of 2 are monoclinic, space group C2/c, with unit cell dimensions a=21.151(3), b=13.174(3), c=13.477(2) Å, β=123.17(1)° and Z=4. The structure was solved using 2760 unique observed reflections; the refinement of 195 variables gave R and Rw values of 0.039 and 0.040, respectively. In both complexes, the molybdenum atom displays distorted octahedral geometry with nearly linear cis-hydrazido ligands.

Original languageEnglish
Pages (from-to)245-250
Number of pages6
JournalInorganica Chimica Acta
Volume249
Issue number2
DOIs
StatePublished - 15 Aug 1996
Externally publishedYes

Keywords

  • Crystal structures
  • Hydrazine complexes
  • Molybdenum complexes
  • Organohydrazido complexes

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