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Conference publicationsOn the non-planatrity of O=C-N-H group in single amides and dipeptides of L-aminoacidsRussia, Pushchino By using ab initio MP2 and semi-empirical РМ3 quantum-chemical calculations we discussed the non-planar structure bistability of O=C-N-H fragment in the form organization of simple amides and dipeptides. Influence of chemical substitution on structural polymorphism of the peptide group is shown. |