Mehrfachbindungen zwischen hauptgruppenelementen und übergangsmetallen. CIII. cis-Dimethylbis(2,2-dimethylpropyl)-oxoosmium(VI): Röntgenstrukturanalyse eines gemischtalkylierten Osmiumoxids

Stefan J. Eder, Wolfgang A. Herrmann, Paul Kiprof

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


Mixed-alkyl osmium oxides of formula (R1)2(R2)2OsO accessible along two different synthetic approaches, exhibit cis configuration owing to the stereochemistry of the precursor complexes. This geometry has now been shown for the crystalline state by means of an X-ray diffraction study of cis-dimethylbis(2,2-dimethylpropyl)oxoosmium(VI) (4): monoclinic space group P21 /n; a 565.9(2), b 2650.1(5), and c 962.1(5) pm; β 99.05(2)°; R = 0.027, Rw = 0.017. The title compound (4) is a mixed-alkyl derivative of tetraalkyloxoosmium(VI) complexes and displays a slightly-distorted square pyramidal structure. The oxo ligand is in the apical position (d(OsO) 166.9(3) pm), while the cis-oriented alkyl groups are found in the basal positions (d(OsC) 208.3(4) to 212.6(3) pm).

Original languageGerman
Pages (from-to)409-414
Number of pages6
JournalJournal of Organometallic Chemistry
Issue number3
StatePublished - May 5 1992

Cite this