On the origin of the Raman band shifts for H-bonded complexes of normal alcohols and 2-butoxyethanol with water: A theoretical DFT and MP2 study

The present theoretical study discusses the origin of the Raman band shifts appeared in the C–H stretching vibration region for complexes of normal alcohols with water as well as those of 2-butoxyethanol. It was shown that the nature of the red shift in the Raman active C–H stretching vibration modes initiated by a nanosecond temperature jump has a novel interpretation and bolster further the previously observed phenomenon for triethylamine–water complex.