Fourier transform infrared photoacoustic spectroscopy: a novel conformational probe. Demonstration of .alpha.-helical conformation of poly(.gamma.-benzyl glutamate)

Fourier transform infrared photoacoustic spectroscopy (FT-IR PAS) has emerged as a novel technique for studying a wide range of problems in chemistry and biology. In this communication, the first report in the literature of an application of FT-IR PAS to the determination of molecular conformations,...

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Bibliographic Details
Published in:Journal of the American Chemical Society 1984-04, Vol.106 (7), p.2217-2219
Main Authors: Renugopalakrishnan, V, Bhatnagar, Rajendra S
Format: Article
Language:English
Subjects:
Aminoacid polymers
Applied sciences
Exact sciences and technology
helix
I.R. spectroscopy
Physicochemistry of polymers
poly( gamma -benzyl glutamate)
Synthetic biopolymers
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Summary:Fourier transform infrared photoacoustic spectroscopy (FT-IR PAS) has emerged as a novel technique for studying a wide range of problems in chemistry and biology. In this communication, the first report in the literature of an application of FT-IR PAS to the determination of molecular conformations, the authors are presenting the results of the applications of this novel conformational probe to poly-( gamma -benzyl glutamate). Poly( gamma -benzyl glutamate) has been shown to prefer alpha -helical structure in its higher molecular weight fraction by X-ray diffraction, conventional IR, and Raman spectroscopic methods.
ISSN:0002-7863
1520-5126
DOI:10.1021/ja00319a056