A1 Journal article (refereed)
Raman spectroscopy of glycolic acid complexes with N2 (2019)

Ahokas, J., Kosendiak, I., Krupa, J., Wierzejewska, M., & Lundell, J. (2019). Raman spectroscopy of glycolic acid complexes with N2. Journal of Molecular Structure, 1183, 367-372. https://doi.org/10.1016/j.molstruc.2019.01.080

JYU authors or editors

Publication details

All authors or editors: Ahokas, Jussi; Kosendiak, Iwona; Krupa, Justyna; Wierzejewska, Maria; Lundell, Jan

Journal or series: Journal of Molecular Structure

ISSN: 0022-2860

eISSN: 1872-8014

Publication year: 2019

Volume: 1183

Issue number: 0

Pages range: 367-372

Publisher: Elsevier BV

Publication country: Netherlands

Publication language: English

DOI: https://doi.org/10.1016/j.molstruc.2019.01.080

Publication open access: Not open

Publication channel open access:

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/63056

Abstract

High overtone excitation induced conformational isomerization of glycolic acid – nitrogen complex in an argon matrix was investigated by Raman spectroscopy. The interaction between glycolic acid and nitrogen change the green light (532 nm) induced isomerization processes compared to non-complexed glycolic acid. The 180° rotation around of the Csingle bondC bond and stabilization of carboxyl Odouble bondCsingle bondOsingle bondH dihedral angle to trans position were the main conformational changes observed in the complex of the lowest energy conformer and nitrogen. Interestingly, only one stable light-induced conformational product was observed, which isomerises back to the lowest energy conformer upon prolonged irradiation at 532 nm. The vibrational Raman spectrum of glycolic acid – nitrogen complex and the analysis of the isomerization kinetics are presented.

Keywords: molecules; isomerism; spectroscopy

Free keywords: matrix isolation; raman spectroscopy; high overtone excitation; isomerization; molecular complex

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Ministry reporting: Yes

Reporting Year: 2019

JUFO rating: 1