S. Jain, S. S. Tavale, A. Biswas
Mar 15, 1969
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Journal
Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry
Abstract
Crystals of sodium 2-oxovalerate, CH3(CH2)2COCOONa, grown from a water-alcohol mixture, belong to the orthorhombic space group Pbcn and contain eight molecules per unit cell of dimensions: a= 34.08, b = 6.14 and c = 5.91 A. A least-squares refinement of the three-dimensional data, with isotropic temperature factors for all the atoms except hydrogens, brought the residual down to 12.3 %. The structure consists of Na-O bonds holding the molecules into infinite layers parallel to the (100) plane. Thus molecules are tightly bound by Na-O bonds on one side and loosely by van der Waals bonds on the other.