Knowledge Bank

A vibrational study of pyridine and its seven deuterium substituted $C2v$ species is reported. New data for the isotopic molecules which have been previously studied are reported together with data for the three isotopic molecules never before reported. Liquid and vapor phase infrared spectra and liquid phase Raman spectra are considered. Raman spectra of weakly hydrogen-bonded complexes of the isotopic $C2v$ pyridines were also studied and were found to be of assistance in the assignment of fundamental Preliminary results will be reported.