Synthesis of triosmium clusters with amino acid ligands: crystal structure of(μ-H)Os3(μ-NHCH(CH3)CO2Et)(CO) 10

V. A. Maksakov, N. V. Podberezskaya, E. V. Golubovskaya, V. P. Kirin, S. P. Babailov, S. P. Gubin

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Abstract

Triosmium clusters with amino acid ligands (μ-H)Os3(μ-NHCH(R)CO2Et)(CO)10 (R is H or CH3) were synthesized. The stereochemical features of the ligand environment in the clusters were studied by 1H NMR. The complex (μ-H)Os(μ-NHCH(CH3)CO2Et)(CO)10 is structurally characterized by X-ray diffraction. The compound, whose chemical formulais C15H11NO12Os3, crystallizes in the monoclinic space group P21, with Z = 2 and lattice parameters a = 9.194(6) Å, b = 8.716(4) Å, c = 14.913(8) Å, β= 104.20(3)°, V= 1158(1) Å3, and dcalcd = 2.774 g/cm3. A short contact of 3.19 Å occurs between the methyl carbon atom of the amino acid ligand and one of the equatorial CO groups, which seems to be responsible for a displacement of the nitrogen atom of the bridging ligand with respect to the midpoint of the Os(2)-Os(3) bond.

Original languageEnglish
Pages (from-to)59-65
Number of pages7
JournalRussian Journal of Inorganic Chemistry
Volume41
Issue number1
Publication statusPublished - 1996
Externally publishedYes

ASJC Scopus subject areas

  • Inorganic Chemistry

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    Maksakov, V. A., Podberezskaya, N. V., Golubovskaya, E. V., Kirin, V. P., Babailov, S. P., & Gubin, S. P. (1996). Synthesis of triosmium clusters with amino acid ligands: crystal structure of(μ-H)Os3(μ-NHCH(CH3)CO2Et)(CO) 10. Russian Journal of Inorganic Chemistry, 41(1), 59-65.