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Studies on ATR spectra of mesogenic cholesteryl carbamates

C. TOPALĂ1,* , S. ANGHEL1

Affiliation

  1. University of Piteşti, Faculty of Science, Târgu din Vale No.1, Piteşti – 110040, Romania

Abstract

Mesogenic cholesteryl carbamates, liquid crystals synthesized in Organic Chemistry laboratory of the Faculty of Science, University of Pitesti, were studied using FTIR-ATR spectroscopy. Urethanic and carbonyl group frequency from cholesteryl carbamates was obtained by the use of an attenuated total reflectance (ATR) attachment on FTIR. The data was ATR corrected. In addition, spectral data was obtained with a KBr transmission technique on FTIR. After advanced ATR correction the band shift to lower frequency in the C=O and NH stretch of carbamates are reduced.

Keywords

Liquid crystals, Attenuated total reflexion, Mesogen, Cholesterylcarbamates.

Citation

C. TOPALĂ, S. ANGHEL, Studies on ATR spectra of mesogenic cholesteryl carbamates, Optoelectronics and Advanced Materials - Rapid Communications, 3, 11, November 2009, pp.1213-1216 (2009).

Submitted at: July 29, 2009

Accepted at: Oct. 29, 2009