Molybdocene dihydride is the organomolybdenum compound with the formula (η5-C5H5)2MoH2. Commonly abbreviated as Cp2MoH2, it is a yellow air-sensitive solid that dissolves in some organic solvents.

The compound is prepared by combining molybdenum pentachloride, sodium cyclopentadienide, and sodium borohydride.[1][2] The dihydride converts to molybdocene dichloride upon treatment with chloroform.

The compound adopts a "clamshell" structure where the Cp rings are not parallel.[3]

References

  1. ^ Silavwe, Ned D.; Castellani, Michael P.; Tyler, David R. (1992). "Bis(η 5 -Cyclopentadienyl)Molybdenum(IV) Complexes". Inorganic Syntheses. Vol. 29. pp. 204–211. doi:10.1002/9780470132609.ch50. ISBN 9780470132609.
  2. ^ Green, M. L. H.; McCleverty, J. A.; Pratt, L.; Wilkinson, G. (1961). "The Di-π-cyclopentadienyl Hydrides of Tantalum, Molybdenum, and Tungsten". Journal of the Chemical Society: 4854–9. doi:10.1039/JR9610004854.
  3. ^ K. Prout, T. S. Cameron, R. A. Forder, and in parts S. R. Critchley, B. Denton and G. V. Rees "The crystal and molecular structures of bent bis-π‑cyclopentadienyl-metal complexes: (a) bis-π‑cyclopentadienyl­dibromo­rhenium(V) tetrafluoroborate, (b) bis-π‑cyclopentadienyl­dichloro­molybdenum(IV), (c) bis-π‑cyclopentadienyl­hydroxo­methylamino­molybdenum(IV) hexafluorophosphate, (d) bis-π‑cyclopentadienyl­ethyl­chloro­molybdenum(IV), (e) bis-π‑cyclopentadienyl­dichloro­niobium(IV), (f) bis-π‑cyclopentadienyl­dichloro­molybdenum(V) tetrafluoroborate, (g) μ‑oxo-bis[bis-π‑cyclopentadienyl­chloro­niobium(IV)] tetrafluoroborate, (h) bis-π‑cyclopentadienyl­dichloro­zirconium" Acta Crystallogr. 1974, volume B30, pp. 2290–2304. doi:10.1107/S0567740874007011
Allikas: https://en.wikipedia.org/wiki/Molybdocene_dihydride
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