Gas phase UV and IR absorption spectra of CF 3CH 2CH 2OH and F(CF 2CF 2) xCH 2CH 2OH ( x = 2, 3, 4)

Abstract

The UV and IR spectra of CF 3CH 2CH 2OH and F(CF 2CF 2) x CH 2CH 2OH ( x = 2, 3, 4) were investigated using computational and experimental techniques. Computational methods were used to show that CF 3CH 2CH 2OH and F(CF 2CF 2) x CH 2CH 2OH ( x = 2, 3) have UV absorption in the region 140–175 nm. Photolysis is therefore not a significant environmental loss mechanism for fluorinated alcohols. Experimental methods were used to record IR spectra for CF 3CH 2CH 2OH and F(CF 2CF 2) x CH 2CH 2OH ( x = 2, 3, 4) at spectral resolutions of 0.004–0.5 cm −1 with, and without, 700 Torr of air diluent. There was no discernable effect of total pressure or spectral resolution over the range studied. Calculated IR spectra agreed well with those measured experimentally, and were used to assign the IR spectra.