Solid state and solution conformation of 2-pyridinecarboxylic acid hydrazides: a new structural motif for foldamers
作者:Joachim Garric、Jean-Michel Léger、Axelle Grelard、Masakazu Ohkita、Ivan Huc
DOI:10.1016/s0040-4039(02)02881-2
日期:2003.2
a strong preference for trans conformers of N′-phenyl or N′-(2-pyridyl) 2-pyridinecarboxylic acid hydrazides, stabilized by an NHNpyr. intramolecular hydrogen bond both in the solid state and in solution. This allows us to extrapolate that oligomers of this unit should adopt extended linear conformations.
X射线晶体学和NMR显示出强烈优选通过NH 3 N吡啶稳定的N'-苯基或N '-(2-吡啶基)2-吡啶羧酸酰肼的反式构象体。固态和溶液中的分子内氢键。这使我们可以推断该单元的低聚物应采用扩展的线性构象。