DL-Proline

  • Acta Crystallogr C. 2005 Aug;61(Pt 8):o506-8. doi: 10.1107/S0108270105021001.
Sunnie Myung  1 ,  Maren Pink ,  Mu Hyun Baik ,  David E Clemmer
Affiliations
  • 1. Department of Chemistry, Indiana University, 800 E. Kirkwood, Bloomington, IN 47405, USA.
PMID: 16082102 DOI: 10.1107/S0108270105021001
Abstract

In the structure of DL-proline, C5H9NO2, the molecules are connected via classical intermolecular N-H...O hydrogen bonds involving the amine and carboxyl groups [N...O = 2.7129 (15) and 2.8392 (16) A], and form chains along the b-axis direction and parallel to (-101). The chains are linked into sheets via weak non-classical hydrogen bonds. The conformation of the molecule and its packing are notably different from the monohydrated DL-proline form.

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