Issue 16, 1973

Uranyl oxalate complexes. Part III. Preparation and crystal and molecular structure of ammonium diuranyl trioxalate

Abstract

The crystal structure of the title compound has been determined from photographic and diffractometer data by the heavy-atom method. Crystals are monoclinic, space group P21/n, a= 9·46(2), b= 13·61(2), c= 6·12(1)Å, β= 92·7(1)°, Z= 2. 886 Reflections were refined to a final R of 0·113. The crystal contains NH4+ and [(UO2)2(C2O4)3]n2n ions. In the latter, one oxalate group is ter- and one quadri-dentate, giving double chains parallel to c. Mean U–O distances are 1·77 (uranyl) and 2·38 Å(to oxalate). The structures and bonding of oxalato- and other complexes of UO2+ are discussed.

Article information

Article type
Paper

J. Chem. Soc., Dalton Trans., 1973, 1616-1620

Uranyl oxalate complexes. Part III. Preparation and crystal and molecular structure of ammonium diuranyl trioxalate

N. W. Alcock, J. Chem. Soc., Dalton Trans., 1973, 1616 DOI: 10.1039/DT9730001616

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