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A new polymorph, form C, of [1,2-bis(diphenylphosphino)ethane]-dichloronickel(II). | LitMetric
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A new polymorph, form C, of [1,2-bis(diphenylphosphino)ethane]-dichloronickel(II).

J C Davison M R Foreman R A Howie M J Plater J M Skakle

Acta Crystallogr C

School of Physics, University of Aberdeen, Fraser Noble Building, Aberdeen AB24 3UE, Scotland.

Published: June 2001

The title compound, [NiCl2(C26H24P2)], has arisen as a result of the unexpected reduction (hydrogenation) of the trans-1,2-bis(diphenylphosphino)ethene ligand. The hydrothermal reaction conditions have produced a third polymorphic form of the compound which has twofold symmetry, crystallizes in an enantiomer-selective manner and contains an unexpectedly short C-C (ethane) bond. Contacts of the form C-H...Cl are present, one involving alkyl and the other aryl hydrogen, with C.Cl distances of 3.556 (4) and 3.664 (6) A, respectively.

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http://dx.doi.org/10.1107/s0108270101003961DOI Listing

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