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New Developments in Fourier Transform Infrared Vibrational Circular Dichroism Measurements

Volume 43, Number 8 (Dec. 1989) Page 1295-1297

Polavarapu, P.L.

A new FT-IR vibrational circular dichroism (VCD) spectrometer has been assembled to record VCD spectra with excellent signal quality up to ~650 cm−1. A special detector with 600 cm−1 cutoff (D* = 4 × 1010), a ZnSe modulator, and a KRS-5 polarizer were used in these measurements. Typical VCD spectra at 4 cm−1 resolution, can be obtained within a one-hour data acquisition period, while those at 1 cm−1 resolution, in the ~1500-650 cm−1 region, can be obtained within four hours of data acquisition per sample. VCD spectra for α-pinene, 3-bromocamphor, and propylene oxide are presented.