The preparation, crystal and molecular structure of [MoCl2(NH)O(EtPh2PO)2] the preparation, crystal and molecular structure of [MoCl2(NH)O(EtPh2PO)2]. An example of terminal, nonlinear-imido-coordination

Joseph Chatt, Robert Choukroun, Jonathan R. Dilworth, Jefferey Hyde, Phillip Vella, Jon A Zubieta

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Reaction of MoOCl3 with Me3SiN3 m THF followed by addition of tertiary phosphine oxides, RPO3(R3=Ph3, Ph2Et, Ph2Me), gives [MoCl2(NH)O(OPR3)2]. The crystal and molecular structure of the compound has been determined by x-ray diffraction methods. The complex crystallises in the monoclinic space group P21 /a with four molecules in a unit cell having dimensions a=15.667(8) Å, b=20.135(9) Å, c=9.726(7) Å and β=95.01(1) Å. A total of 3510 reflections were collected by counter techniques using MoKα radiation. The structure was refined on 2597 reflections with I > 2.58 σ (I) by full matrix least squares, using anisotropic temperature factors for all nonhydrogen atoms, to give a final R factor of 0.082. The overall configuration of the distorted octahedral complex is trans-dichloro-cis-bis[ethyl(diphenyl)phosphineoxide]cis-(oxo) imido with the molybdenum formally in the oxidation state (VI). The imido hydrogen has been located, and the Mo-N-H system is nonlinear.

Original languageEnglish (US)
Pages (from-to)59-63
Number of pages5
JournalTransition Metal Chemistry
Issue number1
StatePublished - Jan 1979
Externally publishedYes


ASJC Scopus subject areas

  • Inorganic Chemistry

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