Hexafluorosilicates of alanine
- Author(s)
- V. V. Ghazaryan, Michel Fleck, A.M. Petrosyan
- Abstract
The existence of three types of salts of amino acid hexafluorosilicates 2 A+ · SiF62-, A2+ · SiF62- and 2(A ··· A+) · SiF62-, where A is an amino acid in zwitterionic state, A+ is a singly charged cation, A2+ is a doubly charged cation and (A ··· A+) is a dimeric cation with a short hydrogen bond, have been established, in the literature (Ghazaryan, V. V.; Fleck, M.; Petrosyan, A. M.: Salts of amino acids with hexafluorosilicate anion. J. Cryst. Growth (2011), doi: 10.1016/j.jcysgro.2011.11.017). Here we report the investigation of hexafluorosilicates of a-alanine. Both L- and DL-alanine form salts according to the main 2 A+ · SiF62- type: 2L-Ala+ · SiF62- · 3 H2O and 2DL-Ala+ · SiF62- · 2 H2O. In addition we found that L-alanine forms a new A+ · (A ··· A+) · SiF62- type of salt: L-Ala+ · (L-Ala ··· L-Ala+) · SiF62- · H2O. Results of structural and vibrational spectroscopic studies are described and discussed.
- Organisation(s)
- Department of Mineralogy and Crystallography
- External organisation(s)
- National Academy of Sciences of the Republic of Armenia
- Journal
- Zeitschrift für Kristallographie - Crystalline Materials
- Volume
- 227
- Pages
- 646-655
- No. of pages
- 10
- ISSN
- 2194-4946
- Publication date
- 2012
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 105113 Crystallography
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/b6d9e825-bd33-4ded-9550-b80bbf835015