Skip to main content
placeholder image

The 3, 5, 6, and 7 THz resonances of ¿-glycine

Journal Article


Abstract


  • Using an optically thin single crystal sample, mounted in a cryostat permitting cooling to 6 K, and a synchrotron as a bright light source, exceptionally well defined absorption spectra of well-characterised α-glycine have been obtained in the spectral range 2.5–7.5 THz (approximately 80–240 cm−1). Four separate resonances have been observed, respectively at 93, 152, 188, and 223 cm−1 at the lowest temperature. Each reduces in frequency (redshifts) as temperature increases. The origin of this observed behaviour is attributed to a phonon-mediated anharmonicity in the crystal potential.

UOW Authors


Publication Date


  • 2021

Citation


  • Sanders, T. J., Allen, J. L., Plathe, R., Horvat, J., & Lewis, R. A. (2021). The 3, 5, 6, and 7 THz resonances of ¿-glycine. Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, 253. doi:10.1016/j.saa.2021.119544

Scopus Eid


  • 2-s2.0-85101375349

Volume


  • 253

Abstract


  • Using an optically thin single crystal sample, mounted in a cryostat permitting cooling to 6 K, and a synchrotron as a bright light source, exceptionally well defined absorption spectra of well-characterised α-glycine have been obtained in the spectral range 2.5–7.5 THz (approximately 80–240 cm−1). Four separate resonances have been observed, respectively at 93, 152, 188, and 223 cm−1 at the lowest temperature. Each reduces in frequency (redshifts) as temperature increases. The origin of this observed behaviour is attributed to a phonon-mediated anharmonicity in the crystal potential.

UOW Authors


Publication Date


  • 2021

Citation


  • Sanders, T. J., Allen, J. L., Plathe, R., Horvat, J., & Lewis, R. A. (2021). The 3, 5, 6, and 7 THz resonances of ¿-glycine. Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, 253. doi:10.1016/j.saa.2021.119544

Scopus Eid


  • 2-s2.0-85101375349

Volume


  • 253