1318779-96-2Relevant academic research and scientific papers
Self-complementary quadruply hydrogen-bonded duplexes based on imide and urea units
Li, Xianghui,Fang, Yuyu,Deng, Pengchi,Hu, Jinchuan,Li, Tian,Feng, Wen,Yuan, Lihua
, p. 4628 - 4631 (2011/11/06)
The quadruply hydrogen-bonded duplexes based on an imide-urea structure preorganized by three-center hydrogen bonds were found to associate via bifurcated hydrogen bonds. 1H NMR dilution experiments revealed the high stability of the homodimer in apolar solvent (Kdim > 10 5 M-1 in CDCl3) and enhancement of association ability due to electron-withdrawing substituent effects. The ready synthetic availability and adjustable association affinity via electronic effects may render these association units potentially applicable in constructing supramolecular architectures.
