The molecular and crystal structures of (η7-cycloheptatrienyl)molybdenum(II)- μ-bromo-μ-dihydroxo-(η7-cycloheptatrienyl)molybdenum(II) tetrafluoroborate tetrahydrofuran solvent

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


The molecular and crystal structures of (η7-cycloheptatrienyl)molybdenum(II)-μ-bromo-μ-dihydroxo-(η7 -cycloheptatrienyl)molybdenum(II) tetrafluoroborate as a tetrahydrofuran solvate have been determined by the analysis of three-dimensional X-ray diffraction data. Crystals are monoclinic, space group P21 a with cell dimensions a = 18.936(18), b = 11.530(14), c = 9.955(4) Å, β = 90.06(6)° and Z = 4. Intensity data were recorded at room temperature on a Syntex P21 autodiffractometer using graphite monochromated Mo Kα radiation. The structure was solved by Patterson and Fourier techniques, and refined by least-squares to a conventional R factor of 0.106. The crystal structure is built of equal numbers of |(C7H7)Mo(Br)(OH)2Mo(C7H7)|+ cations, BF4- anions and C4H8O solvent molecules. The cation features a metal-metal bond, 2.882(2) Å, and cycloheptatrienyl rings which, although individually planar, are bent symmetrically away from the bromide bridge to subtend a mutual dihedral angle of ca. 17°. The tetrafluoroborate anion and tetrahydrofuran solvent molecule show no unusual geometrical features the latter adopting an envelope conformation with β-carbon apical. The role of these species in locating the hydroxy-H atoms of the cation through possible intermolecular hydrogen bonding is discussed.

Original languageEnglish
Pages (from-to)97-103
Number of pages7
JournalInorganica Chimica Acta
Publication statusPublished - 1977

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry


Dive into the research topics of 'The molecular and crystal structures of (η<sup>7</sup>-cycloheptatrienyl)molybdenum(II)- μ-bromo-μ-dihydroxo-(η<sup>7</sup>-cycloheptatrienyl)molybdenum(II) tetrafluoroborate tetrahydrofuran solvent'. Together they form a unique fingerprint.

Cite this