THE INTERACTIONS OF MACROCYCLIC ETHERS BY C-13 DIPOLE-DIPOLE RELAXATION-TIME MEASUREMENTS


ERK C.

MAKROMOLEKULARE CHEMIE-MACROMOLECULAR SYMPOSIA, vol.52, pp.297-302, 1991 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 52
  • Publication Date: 1991
  • Doi Number: 10.1002/masy.19910520130
  • Title of Journal : MAKROMOLEKULARE CHEMIE-MACROMOLECULAR SYMPOSIA
  • Page Numbers: pp.297-302

Abstract

C-13 dipole-dipole relaxation time measurement studies of free and cation complexed cyclic polyethers in solution are reviewed briefly. The C-13 dipole-dipole relaxation time of the macrocyclic ether backbone has been recognized to be a function of a motion of the molecular segment acting as a macrocyclic ligand site. This has been particularly investigated by NMR under extreme narrowing conditions.