The infrared absorption of poly-L-proline in concentrated aqueous salt solutions was measured in the fundanierital region. Of primary interest were the carbonyl absorption of the peptide linkage and the methylene C-H bending absorption of the pyrrolidine ring. These spectral regions each show an add
Infrared study of poly-L-proline in aqueous solution
โ Scribed by Swenson, Charles A.; Formanek, Robert
- Book ID
- 121477990
- Publisher
- American Chemical Society
- Year
- 1967
- Tongue
- English
- Weight
- 494 KB
- Volume
- 71
- Category
- Article
- ISSN
- 0022-3654
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๐ SIMILAR VOLUMES
## Synopsis Tlic laser-exvited Raman spectra have been obtained of poly-cproline in the solid and aqueous solution. I n the solid state, the Raman spectra are of the form I1 which is the left-handed helical form with the peptide bonds in the trans configuration. Dissolution of this form in water p
Infrared spectra have been obt,aiiied of poly-Lproline in aqueous CaCL solutions. As the salt concentration is increased, the C=O stretching band develops a component at, the frequency found in the solid state while the CH, bending band broadens to higher frequency. Since circular dichroism spectra