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


ERK C.

MAKROMOLEKULARE CHEMIE-MACROMOLECULAR SYMPOSIA, cilt.52, ss.297-302, 1991 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 52
  • Basım Tarihi: 1991
  • Doi Numarası: 10.1002/masy.19910520130
  • Dergi Adı: MAKROMOLEKULARE CHEMIE-MACROMOLECULAR SYMPOSIA
  • Sayfa Sayıları: ss.297-302

Özet

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.