Acta Crystallographica Section C

Crystal Structure Communications

Volume 57, Part 11 (November 2001)

Acta Cryst. (2001). C57, 1292-1294 [doi:10.1107/S0108270101013130]

-Bis(diphenylphosphino)methane-P:P'-octacarbonyldimanganese(Mn-Mn) and its toluene hemisolvate

G. T. Baxley, A. E. Stiegman, G. F. Nieckarz, T. J. R. Weakley, D. R. Tyler and J. Gilbertson

Abstract: The Mn-Mn bonds in the two independent molecules of the unsolvated title compound, [Mn₂(C₂₅H₂₂P₂)(CO)₈], (I), are 2.9714 (7) and 2.9746 (7) Å. This bond is distinctly shortened in the toluene hemisolvate, [Mn₂(C₂₅H₂₂P₂)(CO)₈]·0.5C₇H₈, (II), to 2.9338 (14) Å and this shortening is accompanied by an increase in magnitude of the P-Mn-Mn-P torsion angle [26.93 (3) and 28.44 (3)° in (I), and 33.25 (7)° in (II)], while the PP `bite' is much less affected [3.092 (2) and 3.099 (2) Å in (I), and 3.091 (3) Å in (II)]. The toluene solvate molecule in (II) lies on a twofold axis.

Formula: [Mn₂(C₂₅H₂₂P₂)(CO)₈] and [Mn₂(C₂₅H₂₂P₂)(CO)₈]·0.5C₇H₈

Online 13 November 2001


	Structure factor file (CIF format) (549.4 kbytes) Contains datablock I

	Structure factor file (CIF format) (150.9 kbytes) Contains datablock II

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