Study of N-aldonoyl amino acids by IR spectroscopy
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IR spectroscopy is suggested as a convenient method for determining the difference in the cyclic (dioxomorpholine) and acyclic forms of N-aldonoyl amino acid derivatives. It has been shown that in the acyclic forms, unlike the cyclic, there are strong absorption bands at 1570 cm−1 and 690–720 cm−1 corresponding to the amide II and V vibrations.
KeywordsAmide Diamide Cyclic Peptide Strong Absorption Band Secondary Amide
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