Glycinium semi-malonate and a glutaric acid-glycine cocrystal: New structures with short O - H⋯O hydrogen bonds

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

Glycinium semi-malonate, C 2H 6NO 2 +·C 3H 3O 4 -, (I), and glutaric acid-glycine (1/1), C 2H 5NO 2·C 5H 8O 4, (II), are new examples of two-component crystal structures containing glycine and carb-oxy-lic acids. (II) is the first example of a glycine cocrystal which cannot be classified as a salt, as glutaric acid remains completely protonated. In the structure of (I), there are chains formed exclusively by glycinium cations, or exclusively by malonate anions, and these chains are linked with each other. Two types of very short O - H⋯O hydrogen bonds are present in the structure of (I), one linking glycinium cations with malonate anions, and the other linking malonate anions with each other. In contrast to (I), no direct linkages between molecules of the same type can be found in (II); all the hydrogen-bonded chains are heteromolecular, with molecules of neutral glutaric acid alternating with glycine zwitterions, linked by two types of short O - H⋯O hydrogen bonds.

Original languageEnglish
Pages (from-to)o297-o300
JournalActa Crystallographica Section C: Crystal Structure Communications
Volume67
Issue number8
DOIs
Publication statusPublished - 1 Aug 2011

Fingerprint

Dive into the research topics of 'Glycinium semi-malonate and a glutaric acid-glycine cocrystal: New structures with short O - H⋯O hydrogen bonds'. Together they form a unique fingerprint.

Cite this