Amino acids and peptides. CIII. Infrared spectra and conformations of methylamides of N-acylated amino acids with a hydroxyl group in the side chain

J Smolikova, A Vitek, K Blaha

Index: Smolikova,J. et al. Collection of Czechoslovak Chemical Communications, 1971 , vol. 36, p. 2474 - 2485

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Citation Number: 18

Abstract

Infrared spectra in the range 3200-3 650 cm-1, and their temperature dependence in the range 90-11Oo e, were measured with methylamides of N-acetyl-L-serine (I), N-benzoyl-L- serine (II), N-benzoyl-L-threonine (Ill), N-acetyl-L-alanine (IV), N-acetyl-L-hydroxyproline (V) and N-acetyl-L-proline (VI). Six bands in the spectra of substances I-Ill were attributed to vibrations of NH and OH bonds in folded and extended conformations. In the case of ...

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