Chemistry of Natural Compounds

, Volume 9, Issue 3, pp 341–352 | Cite as

Conformational states of methylamides of N-acetyl α-amino acids and their N-methyl derivatives V. Ultraviolet spectra and circular dichroism and optical rotatory dispersion curves

  • V. T. Ivanov
  • P. V. Kostetskii
  • E. A. Meshcheryakova
  • E. S. Efremov
  • E. M. Popov
  • Yu. A. Ovchinnikov
Article

Summary

1. The UV spectra and CD and ORD curves of methylamides and dimethylamides of acetylamino acids have been studied in polar and nonpolar media.

2. On the basis of an analysis of the spectropolarimetric results and those of other methods, the predominating types of spatial forms in media of different polarities have been determined.

3. It has been shown that the conformational state of the main peptide chain is affected both by the volume of the substituent on the Cα atom and by the presence of tertiary amide groups.

Keywords

Conformational State Diamide Rotational Force Optical Rotatory Dispersion Methylamides 

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Copyright information

© Plenum Publishing Corporation 1975

Authors and Affiliations

  • V. T. Ivanov
  • P. V. Kostetskii
  • E. A. Meshcheryakova
  • E. S. Efremov
  • E. M. Popov
  • Yu. A. Ovchinnikov

There are no affiliations available

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