%0 Conference Proceedings
%T Temperature-dependent low-frequency vibrational spectra of sodium magnesium chlorophyllin
%+ Laboratoire Charles Coulomb (L2C)
%+ Institut d’Electronique et des Systèmes (IES)
%+ Modélisation et Spectroscopie THz (MOST)
%+ Capteurs et Instrumentations (CI)
%+ Photonique et Ondes (PO)
%A Coquillat, Dominique
%A Bray, Cédric
%A O'Connor, Emma
%A Brouillet, Etienne
%A Meriguet, Yoann
%A Consejo, Christophe
%A Ruffenach, Sandra
%A Nelson, David
%A Faulds, Karen
%A Teppe, Frederic
%A Torres, Jeremie
%A Dyakonova, Nina
%Z PRIME@MUSEContrat de Plan Etat-Région (CPER) - Région Occitanie “PlantEnvi”
%< avec comité de lecture
%Z L2C:22-138
%( International Conference on Infrared Millimeter and Terahertz Waves
%B 2022 47TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER AND TERAHERTZ WAVES (IRMMW-THZ 2022)
%C Delft, France
%I IEEE
%P 1-2
%8 2022
%D 2022
%R 10.1109/IRMMW-THz50927.2022.9895499
%Z Physics [physics]/Physics [physics]/Biological Physics [physics.bio-ph]Conference papers
%X Terahertz time-domain spectroscopy has been used to investigate the vibrational spectra of polycrystalline sodium magnesium chlorophyllin - one of the natural derivatives of chlorophyll - over the temperature range 88 K–298 K. A number of well-resolved absorption peaks were observed in the frequency range 0.2–2.5 THz, which are interpreted as originating from mixed character of intramolecular and intermolecular vibration modes. As the temperature is increased, the observed absorption features resolve into broader peaks. The peak centered at 1.83 THz shifts towards higher frequencies, indicating that for this feature, significant intermolecular anharmonicity exist.
%G English
%L hal-03824965
%U https://hal.science/hal-03824965
%~ CNRS
%~ IES
%~ OPENAIRE
%~ L2C
%~ UNIV-MONTPELLIER
%~ UM-2015-2021
%~ UM-EPE