The crystal structure of urea oxalic acid (2:1)

Harkema, S. and Bats, J.W. and Weyenberg, A.M. and Feil, D. (1972) The crystal structure of urea oxalic acid (2:1). Acta Crystallographica Section B: Structural crystallography and crystal chemistry, 28 (5). pp. 1646-1648. ISSN 0567-7408

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Abstract:	The crystal structure of urea oxalic acid, 2[CO(NH2)2].(COOH)2 has been determined using three-dimensional X-ray data, collected on an automatic diffractometer. The space group is P21/c. The lattice constants are: a = 5.058 (3), b = 12.400 (3), c = 6.964 (2) A, fl= 98"13 (7) °. The number of molecules in the unit cell is two. The structure consists of layers of urea and oxalic acid molecules held together by hydrogen bonds. The positions of all hydrogen atoms have been found. The compound is not a uronium salt.
Item Type:	Article
Copyright:	© 1972 International Union of Crystallography
Research Group:	Computational Chemistry
Link to this item:	http://purl.utwente.nl/publications/59139
Official URL:	http://dx.doi.org/10.1107/S0567740872004789
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