Mixed salts of amino acids
- Author(s)
- Vahram V. Ghazaryan, Michel Fleck, Aram M. Petrosyan
- Abstract
The mixed salts of di-L-ornithinium(2+) chloride nitrate sulfate (I), di-L-ornithinium(2+) bromide nitrate sulfate (II), di-L-ornithinum(2+) dichloride sulfate (III), and di-L-ornithinum(2+) dibromide sulfate (IV) have been obtained from aqueous solutions. Whereas structure and vibrational spectra of the crystal (I) were known previously, the crystal and molecular structures of (III, IV) have been determined. All crystals have similar structures (space groups C2), with all anions located on twofold axes. The L-ornithinum(2+) cations form O–H...O hydrogen bonds with sulfate anions. Additional N–H···Cl/Br and N–H···O hydrogen bonds further stabilize the structures. All crystals are characterized by ATR FTIR and Raman spectra. The ATR IR spectrum of (I) differs from previously published IR spectrum. Powder SHG tests confirmed nonlinear optical activity of the crystals.
- Organisation(s)
- Department of Mineralogy and Crystallography
- External organisation(s)
- National Academy of Sciences of the Republic of Armenia
- Journal
- Journal of Crystallization Physics and Chemistry
- Volume
- 2
- Pages
- 7-16
- No. of pages
- 10
- ISSN
- 2229-5941
- Publication date
- 2011
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 105113 Crystallography, 104017 Physical chemistry
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/663b0750-9622-40c5-be68-d4787bc49da3