L-Prolinium L-proline halogenides

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

Structures and vibrational spectra of L-prolinium L-proline chloride (I), L-prolinium L-proline bromide (II) and L-prolinium L-proline iodide (III) were analyzed at 100K, 200K and room temperature (RT). The salts (I) and (II) are isostructural and crystallize in the tetragonal space group P41212, Z=8 at RT and in orthorhombic P212121, Z=8 at 100K and 200K. The salt (III) is orthorhombic, space group P212121, Z=4 at all three temperatures. The O⋅⋅⋅O distances in L-prolinium L-proline dimeric cations are equal to 2.464(3) Å (I), 2.456(3) Å (II) and 2.456(4) Å (III) at RT. The presence of strong hydrogen bonds in the crystal structures is reflected in the infrared spectra. The influence of symmetry on second harmonic activity is discussed.

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
1243
Anzahl der Seiten
11
ISSN
0022-2860
DOI
https://doi.org/10.1016/j.molstruc.2021.130851
Publikationsdatum
07-2021
Peer-reviewed
Ja
ÖFOS 2012
104015 Organische Chemie, 104011 Materialchemie, 105113 Kristallographie
Schlagwörter
ASJC Scopus Sachgebiete
Analytical Chemistry, Spectroscopy, Organic Chemistry, Inorganic Chemistry
Link zum Portal
https://ucris.univie.ac.at/portal/de/publications/lprolinium-lproline-halogenides(874bb34d-a0e7-4f32-bdd8-8b388fe46227).html