L-Cysteine Nitrates

Gerald Giester, V. V. Ghazaryan, V.S. Minkov, Elena V. Boldyrevab (Corresponding author), A.M. Petrosyan (Corresponding author)

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Abstract

Abstract: The formation of salts in the L-cysteine–HNO 3–H 2O system was studied yielding three representatives as single crystals: anhydrous L-cysteinium nitrate (L-CysH)NO 3 (I) and two new salts (L-CysH⋯L-Cys)NO 3 (II) and (L-CysH⋯L-Cys)NO 3∙0.5H 2O (III) with the dimeric (L-CysH⋯L-Cys) cation. (I), (II) and (III) crystallize in space groups P2 12 12 1, P2 1 and I2, respectively. Dimeric cations in (II) and (III) were formed by very short O–H⋯O hydrogen bonds with R(O⋯O) distances of 2.440(2) Å and 2.4352(17) Å, respectively. Infrared and Raman spectra of (I–III) were registered and discussed in relation to crystal structures. Characteristics of dimeric cations are compared with those in the previously obtained compounds of L-CysH(L-CysH⋯L-Cys)F(F⋯HF), (L-CysH⋯L-Cys)Cl, (L-CysH⋯L-Cys)Br and (L-CysH⋯L-Cys)I·0.5H 2O. [Figure not available: see fulltext.].

Original languageEnglish
Pages (from-to)917-931
Number of pages15
JournalJournal of Structural Chemistry
Volume64
Issue number5
DOIs
Publication statusPublished - 30 May 2023

Austrian Fields of Science 2012

  • 105116 Mineralogy
  • 105113 Crystallography

Keywords

  • L-cysteine
  • nitrates
  • crystal structure
  • dimeric cation
  • vibrational spectra
  • short hydrogen bonds

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