title: DL-Proline.
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.
authors.affiliation: Department of Chemistry, Indiana University, 800 E. Kirkwood, Bloomington, IN 47405, USA.
authors.forename: Sunnie
authors.initials: S
authors.lastname: Myung
authors.forename: Maren
authors.initials: M
authors.lastname: Pink
authors.forename: Mu Hyun
authors.initials: MH
authors.lastname: Baik
authors.forename: David E
authors.initials: DE
authors.lastname: Clemmer
mesh_terms: D003460:Crystallization; D018360:Crystallography, X-Ray; D006859:Hydrogen / Q000737:chemistry; D006860:Hydrogen Bonding; D008958:Models, Molecular; D008968:Molecular Conformation; D011392:Proline / Q000737:chemistry*
chemical_list: D006859:Hydrogen; D011392:Proline