Letter | Published:

Crystal Structure of Phosphorus Pentachloride

Nature volume 145, page 149 (27 January 1940) | Download Citation



ALTHOUGH much work has been done on the molecular structure of phosphorus pentachloride, no crystal structure determination of this important substance has previously been made, presumably owing to experimental difficulties. In our separate laboratories, independent X-ray diffraction experiments have given the following results: Crystal system tetragonal, approximate cell dimensions a0 = 9·2, c0 = 7·4 A., density circa 2·0 gm./c.c, 4 molecules per unit cell, space group P4/n.

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  1. Department of Mineralogy, University Museum, Oxford.

    • H. M. POWELL
    •  & D. CLARK
  2. Crystallographic Laboratory, Cambridge. Dec. 23.

    • A. F. WELLS


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