The crystal and molecular structure of cyclopentadienyltin(II) chloride. The bonding of the cyclopentadienyl group in tin(II) compounds |
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Authors: | K.D. Bos E.J. Bulten J.G. Noltes A.L. Spek |
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Affiliation: | Institute for Organic Chemistry TNO, Utrecht The Netherlands;Department of Structural Chemistry, State University of Utrecht, Utrecht The Netherlands |
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Abstract: | The crystal and molecular structure of cyclopentadienyltin(II) chloride has been determined from three-dimensional X-ray data. The crystals are orthorhombic, space group Pc21n. The unit cell, of dimensions a = 5.711(5), b = 6.225(5), c = 17.24(2) Å, contains four molecules. The structure has been refined by full matrix least squares techniques to a final R value of 0.083 for 717 independent reflections. In the crystal unsymmetrical tin-chlorine bridges are present between the units of C5H5SnCl.It is suggested that in cyclopentadienyltin(II) compounds the cyclopentadienyl group occupies more than one coordination site as a result of the donation of π electron density from the cyclopentadienyl ring into an empty acceptor orbital of the tin atom having π symmetry. |
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Keywords: | To whom correspondence should be addressed including requests for tables of observed and calculated structure factors. |
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