Universität zu Köln

Koenig, Jonas J., Neudoerfl, Joerg-M., Hansen, Anne and Breugst, Martin ORCID: 0000-0003-0950-8858 (2018). Redetermination of the solvent-free crystal structure of L-proline. Acta Crystallogr. Sect. E.-Crystallogr. Commun., 74. S. 1067 - 1074. CHESTER: INT UNION CRYSTALLOGRAPHY. ISSN 2056-9890

Full text not available from this repository.

Abstract

The title compound, (S)-pyrrolidine-2-carboxylic acid (C5H9NO2), commonly known as l-proline, crystallized without the inclusion of any solvent or water molecules through the slow diffusion of diethyl ether into a saturated solution of l-proline in ethanol. l-Proline crystallized in its zwitterionic form and the molecules are linked via N-H center dot center dot center dot O hydrogen bonds, resulting in a two-dimensional network. In comparison to the only other publication of a single-crystal structure of l-proline without inclusions [Kayushina & Vainshtein (1965). Kristallografiya, 10, 833-844], the R-1 value is significantly improved (0.039 versus 0.169) and thus, our data provides higher precision structural information.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Koenig, Jonas J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Neudoerfl, Joerg-M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Hansen, Anne UNSPECIFIED UNSPECIFIED UNSPECIFIED Breugst, Martin UNSPECIFIED orcid.org/0000-0003-0950-8858 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-177019
DOI:	10.1107/S2056989018009490
Journal or Publication Title:	Acta Crystallogr. Sect. E.-Crystallogr. Commun.
Volume:	74
Page Range:	S. 1067 - 1074
Date:	2018
Publisher:	INT UNION CRYSTALLOGRAPHY
Place of Publication:	CHESTER
ISSN:	2056-9890
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Chemistry > Institute of Organic Chemistry
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language MOLECULAR-STRUCTURE; MONOHYDRATE Multiple languages Crystallography Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/17701