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The circular dichroism spectrum of poly-L-acetoxyproline

✍ Scribed by F. A. Bovey; F. P. Hood

Publisher: Wiley (John Wiley & Sons)
Year: 1967
Tongue: English
Weight: 226 KB
Volume: 5
Category: Article
ISSN: 0006-3525
DOI: 10.1002/bip.1967.360051005

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✦ Synopsis

We report the rircular dirhroism (0) spectrum of poly-L-acetoxyproline in trifluoroethanol, a solvent in which the form I to form I1 conformational isomerization orcurs slowly enough to permit observation of the spectral changes. A romparison is made to poly-L-proline. As judged by the similarity of the CD spectra, the conformations of the corresponding forms of the two polymers must be nearly the same. Transition assignments are proposed; these are shown to agree with the theoretical calculations of Pysh. There is a serious unexplained disrrepanry between our solution data and those of Fasman for poly-L-acetoxyproline.

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