
Vibronic spectra, ab initio calculations, and structures of conformationally non-rigid molecules of oxalyl halides in the ground and lowest excited electronic states. Part I: Reanalysis of the 3680Â Ã
and 4100Â Ã
absorption systems of oxalyl chloride
Keywords: چرخش داخلی; Oxalyl chloride; Vibronic spectra; Internal rotation;