A New [2]Pseudorotaxane from 1,2-Bis(isoquinolinium)ethane Salt/Dibenzo-24-crown-8 Ether


LI J., FAN M., Chen L., HÖKELEK T. , HUANG P.

MOLECULAR CRYSTALS AND LIQUID CRYSTALS, vol.517, pp.3-9, 2010 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 517
  • Publication Date: 2010
  • Doi Number: 10.1080/15421400903290733
  • Title of Journal : MOLECULAR CRYSTALS AND LIQUID CRYSTALS
  • Page Numbers: pp.3-9

Abstract

A new [2]pseudorotaxane from the 1,2-bis(isoquinolinium)ethane axle and the dibenzo-24-crown-8 ether wheel and its self-assembly were investigated by 1H NMR spectroscopy and single crystal X-ray diffraction technique. The results demonstrated that the supramolecular adduct was held together by three noncovalent interaction such as N+...O ion-dipole interactions, C-H...O hydrogen bonding, and -stacking between electron-poor isoquinolinium rings of the axle and electron-rich catechol rings of the wheel. They, furthermore, showed that the phenyl ring as a substituent or a fused ring on pyridinium has a similar effect on the association ability.