Abstract
By repeated synthesis and X-ray diffraction study it was cleared up that a (±)-tartaric acid–urea cocrystal is a true racemate, which crystallizes in noncentrosymmetric space group P21 due to a chiral packing of the molecules in the crystal.
References
1.
Lü M.K., Meng F.Q., Yang Z.H., Yu W.T., Zeng H.
Crystal Research and Technology,
1996
2.
10.1016/j.mencom.2009.01.007_bib2
Lü
Chin. Sci. Bull.,
1996
3.
J. Jacques, A. Collet and S. H. Wilen, Enantiomers, Racemates and Resolutions, Krieger Publishing Company, Malabar, FL, 1994, pp. 15, 23.
4.
Brock C.P., Schweizer W.B., Dunitz J.D.
Journal of the American Chemical Society,
1991