Abstract
The structure of the title compound has been determined from X-ray diffractometer intensity data using Patterson and Fourier techniques. Crystals are triclinic, space group P 1 , with a 7.3626(5), b 10.7516(2), c 13.2404(3) Å, α 106.12(40, β 94.81(6), γ 114.26(6)°, and are composed of discrete non-interacting Ph 3SnCH 2I molecules. The geometry at tin is only slightly distorted from ideal tetrahedral, with CSnC bond angles lying in the range 106.3(2) to 111.8(2)°. The mean SnC(Ph) bond distance (2.133(6) Å) is exactly the same as the SnCH 2I distance (2.134(6) Å). Thus the presence of the bulky, electronegative iodine substituent on the alkyl group has a negligible effect on the stereochemistry at tin. This observation is consistent with the narrow single line seen in the Mössbauer spectrum, but the 1H and 119Sn NMR data show that some perturbation of the electronic distribution occurs. Mass spectral data are also reported.
Published Version
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