Glycine hydrogen fluoride: Remarkable hydrogen bonding in the dimeric glycine glycinium cation

Autor(en)
Michel Fleck, V. V. Ghazaryan, A.M. Petrosyan
Abstrakt

Crystals of glycine hydrogen fluoride (Gly.HF) were prepared from an aqueous solution containing stoichiometricquantities of the components. The crystal structure of Gly.HF was determined, IR and Ramanspectra were registered and are discussed. Gly.HF crystallizes in the orthorhombic space group Pbca withZ = 32. The most remarkable feature of the structure is the existence of symmetric dimeric glycine-glyciniumcations with short hydrogen bonds (O...O distance of 2.446 Å), charge-counterbalanced by hydrogenbifluoride (F-H...F)_ anions - in addition to the expected glycinium cations and fluoride anions.These results were compared with previously published data on crystals grown in the system glycine-HF-H2O.

Organisation(en)
Institut für Mineralogie und Kristallographie
Externe Organisation(en)
National Academy of Sciences of the Republic of Armenia
Journal
Journal of Molecular Structure
Band
984
Seiten
83-88
Anzahl der Seiten
6
ISSN
0022-2860
Publikationsdatum
2010
Peer-reviewed
Ja
ÖFOS 2012
105113 Kristallographie
Link zum Portal
https://ucrisportal.univie.ac.at/de/publications/75b68f0e-f40e-4f72-b668-18b881d242e8