Mixed Salts of Amino Acids: L-Ornithinium(2+) Sulfate Hydrogen Fluoride and Tri-L-Ornithinium(2+) Dinitrate Disulfate

Michel Fleck, V. V. Ghazaryan, A.M. Petrosyan (Korresp. Autor*in)

Veröffentlichungen: Beitrag in FachzeitschriftArtikelPeer Reviewed

Abstract

Crystals of the salts of L-ornithinium(2+) sulfate hydrogen fl uoride and tri- L-ornithinium(2+) dinitrate disulfate have been obtained from synthesis out of aqueous solution. By means of XRD and vibrational spectroscopy (ATR FTIR and Raman), the crystal and molecular structures were determined. The orthorhombic crystals of L-ornithinium(2+) sulfate hydrogen fl uoride (space group P212121) comprise one L-ornithinium(2+) cation, one sulfate anion and one hydrogen fl uoride molecule within the asymmetric unit. In the hexagonal crystals of tri-L-ornithinium(2+) dinitrate disulfate (space group P63), there is one L-ornithinium(2+) cation, as well as two sulfate and two nitrate anions, located on special positions with site occupation factors of 1/3. The crystal structure of L-ornithinium(2+) sulfate hydrogen fluoride is characterized by O–H···O, N–H···O and F–H···O hydrogen bonds to the sulfate anions, as well as N–H···F hydrogen bonds, in tri-L-ornithinium(2+) dinitrate disulfate O–H···O and N–H···O type hydrogen bonds connect the building units. A comparison with the structure of L-ornithinium(2+) sulfate monohydrate is presented.
OriginalspracheEnglisch
Seiten (von - bis)11-25
Seitenumfang15
FachzeitschriftJUET Research Journal of Science and Technology
Jahrgang1
Ausgabenummer1
PublikationsstatusVeröffentlicht - Jan. 2014

ÖFOS 2012

  • 105113 Kristallographie
  • 104015 Organische Chemie
  • 104017 Physikalische Chemie

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