Letter | Published:

Structure of Trans-Potassium Dioxalato-Diaquo-Chromiate

Nature volume 166, page 108 (15 July 1950) | Download Citation

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Abstract

THE crystals of trans-potassium dioxalato-diaquochromiate, K[Cr(C2O4)2(H2O)2].3H2O, are dark red in colour, very hard, and show a very pronounced tendency to intergrow. They are monoclinic, and from X-ray measurements the size of the unit cell was determined as: a = 7.85 A., b = 5.72 A., c = 13.88 A., β = 109° 30′. The density of the compound is 2.02 gm./c.c. The unit cell contains two of the above formula units, and the space group is P2/c (C42h).

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References

  1. 1.

    , Z. Krist., 89, 422 (1934).

  2. 2.

    and , J. Chem. Soc., 1817 (1936).

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Affiliations

  1. National Physical Laboratory, South African Council for Scientific and Industrial Research, Pretoria. March 25.

    • J. N. VAN NIEKERK
    •  & F. R. L. SCHOENING

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https://doi.org/10.1038/166108a0

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