Thin-film transmission spectra of liquid benzylidenemethylamine and o-hydroxybenzylidenemethylamine in the infrared region

The spectrum of the complex refractive index in the NIR and MIR regions was determined for liquid benzylidenemethylamine and intramolecularly hydrogen-bonded 2-hydroxybenzylidenemethylamine from transmission studies. In the MIR region very thin layers with thicknesses of a few micrometers had to be used to obtain reliable data. FT-Raman spectra of the liquids are also reported. Numerous bands were identified in both liquids basing on literature data and results of calculations. The effect of H-bond formation on the shift and intensity changes of bands were discusssed. q 2004 Elsevier B.V. All rights reserved.