Letter | Published:

Crystal Structure of Diphenyl Series

Naturevolume 131page513 (1933) | Download Citation



A COMPARISON of the results of crystal structure analyses of diphenyl, p-diphenylbenzene and p-diphenyldiphenyl gives evidence that in this series of compounds the benzene rings in each molecule are coplanar and linearly extended. The three substances crystallise in structures of P 21/a symmetry with unit cells which are nearly identical in the a and b directions and have the respective lengths of 9.50, 13.59 and 17.72 A. along the c axis. From the marked similarity not only in dimensions but also in the intensity of those reflections which are less dependent on the length of the molecule, it is apparent that there is a similarity of structure and that in each case the length of the molecule is roughly parallel to the c axis.

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  1. Davy-Faraday Research Laboratory, London, W.1.



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