Far-Infrared Synchrotron Spectroscopy and Quantum Chemical Calculations of the Potentially Important Interstellar Molecule, 2-Chloroethanol.

The high brightness of the Australian synchrotron allowed for detailed spectra to be collected at high resolution (0.00096 cm) in the vicinity of the a/ b/ c-type ν band of 2-chloroethanol, which involves O-H torsional motion about the C-O bond. A rovibrational analysis was performed for both chlorine isotopologues in the ν fundamental (centered at ∼344 cm) which involved the assignment of 7153 lines ( J ≤ 90, K ≤ 41).