V. Tereshko, E. Navarro, J. Puiggalí
Dec 1, 1993
Citations
1
Influential Citations
22
Citations
Journal
Macromolecules
Abstract
Two malonamide derivatives of the type RNHCOCH 2 CONHR', with R=R'=phenyl or propyl were synthesized and their X-ray diffraction was analyzed. Their structure were compared with other known compounds of the same family. In all cases the planes of the peptide groups are approximately perpendicular, as a result of the fact that the two ψ torsion angles about the carbonyl-methylene bonds are in the range 100-150°. An intramolecular hydrogen bond is never found. Due to this conformation, a network of hydrogen bonds oriented in two directions in space is formed, a situation also found in n,3 nylons