TY - JOUR
T1 - High resolution far infrared spectroscopy of HFC-134a using a collisional cooling cell adapted to a synchrotron source
AU - Wong, Andy
AU - Medcraft, Christopher Michael
AU - Thompson, Christopher David
AU - Robertson, Evan Garry
AU - Appadoo, Dominic R T
AU - McNaughton, Donald
PY - 2015
Y1 - 2015
N2 - A low temperature (176 K), high resolution far-IR spectrum of 1,1,1,2-tetrafluoroethane (HFC-134a) has been recorded at the Australian Synchrotron Far-IR beamline. The ν8 band, located at 665.62 cm−1, has been analysed and 4635 ro-vibrational transitions were assigned and confirmed using ground state combination differences. Local perturbations emanating from two interacting dark states were identified, and subsequently treated using two c-axis Coriolis coupling terms. The necessary modifications of a collisional cooling/enclosive flow cooling cell for synchrotron far-IR spectroscopy are outlined.
AB - A low temperature (176 K), high resolution far-IR spectrum of 1,1,1,2-tetrafluoroethane (HFC-134a) has been recorded at the Australian Synchrotron Far-IR beamline. The ν8 band, located at 665.62 cm−1, has been analysed and 4635 ro-vibrational transitions were assigned and confirmed using ground state combination differences. Local perturbations emanating from two interacting dark states were identified, and subsequently treated using two c-axis Coriolis coupling terms. The necessary modifications of a collisional cooling/enclosive flow cooling cell for synchrotron far-IR spectroscopy are outlined.
UR - http://goo.gl/7E9euh
U2 - 10.1016/j.cplett.2015.06.019
DO - 10.1016/j.cplett.2015.06.019
M3 - Article
SN - 0009-2614
VL - 634
SP - 225
EP - 229
JO - Chemical Physics Letters
JF - Chemical Physics Letters
ER -