Metal–metal bonding in co-ordination complexes. Part VII. Crystal structure of dicarbonylcyclopentadienyl(tribromostannyl)iron
- 1 January 1970
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc. A
- p. 2247-2251
- https://doi.org/10.1039/j19700002247
Abstract
The crystal structure of dicarbonyl-π-cyclopentadienyl(tribromostannyl)iron has been determined by single-crystal X-ray methods using the intensities of 1478 spectra measured by counter diffractometry. The crystals are orthorhombic, space group Pbca, a= 12·584(1), b= 13·427(1), c= 15·159(2)Å, Z= 8. The structure was solved by symbolic addition methods and refined by block-diagonal least-squares techniques with individual anisotropic thermal parameters to R= 0·04. The molecule contains a short Sn–Fe σ-bond, 2·462(2)Å. Fe–Sn–Br and Br–Sn–Br angles lie in the ranges 117·6–118·4 and 98·6–101·6° respectively. Average bond distances are: Sn–Br, 2·501(2); Fe–C(ring), 2·088(2); Fe–C(carbonyl), 1·76(1); C–O, 1·13(1); C–C, 1·394(5)Å. Molecular interactions are of normal van der Waals type with no abnormally short inter- or intra-molecular contacts.Keywords
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