Infrared laser induced conformational and structural changes of glycine and glycine·water complex in low-temperature matrices

Stéphane Coussan, György Tarczay

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Conformational and structural changes of matrix-isolated glycine and glycine·water complexes induced by the selective MIR excitation of the fundamental OH and NH stretching vibrational modes were studied. The observed spectral changes are consistent with the former assignments based on matrix-isolation IR spectroscopy combined with NIR laser irradiation. Since fewer conformational barriers can be reached by MIR than by NIR excitations, fewer processes are promoted effectively by MIR radiation. The comparison of spectral changes induced by selective MIR and NIR excitations can facilitate the conformational analysis of complex molecular systems and it can also yield information on the barrier heights.

Original languageEnglish
Pages (from-to)189-194
Number of pages6
JournalChemical Physics Letters
Publication statusPublished - Jan 16 2016


ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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