ISSN:
0377-0486
Keywords:
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
A simple computer-controlled instrument for natural and magnetic incident circular polarization Raman optical activity (ICP ROA) measurements in right-angle scattering is described. The key spectral elements consist of a fast single-stage monochromator equipped with a holographic notch filter, a highly efficient holographic diffraction grating and a thinned back-illuminated, thermoelectrically cooled charge-coupled device (CCD) detector. A temperature-stabilized longitudinal electro-optic modulator is employed to switch between orthogonal circular polarization states in the incident laser radiation. A polaroid film together with a mica half-wave retardation plate are used to select particular linear polarization states in the Raman scattered radiation with the same instrumental response. High-quality depolarized and polarized Stokes and depolarized anti-Stokes ICP ROA spectra of (R)-(-) and (S)-(+)-phenyloxirane and depolarized magnetic resonance ICP ROA spectra of copper(II) tetrabromide are presented as typical examples of the excellent performane characteristics.
Additional Material:
6 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jrs.1250250703
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