Intermolecular Energy Transfer Between Lanthanide Complex Ions in Micellar Solution |
| W. Dong and C.D. Flint Laser Laboratory, Department of Chemistry, Birkbeck College, University of London, Gordon House, 29 Gordon Square, London WC1H OPP, United Kingdom |
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| Two different procedures for the study of the quenching of excited states by lanthanide complex ions on the surface of micelles are considered. In the first, excited Tb(pdc)33- (pdc = pyridine 2,6-dicarboxylate) complex ions are held in close proximity to other Ln(pdc)33- ions on the surface of cetyl trimethyl ammonium micelles. Efficient energy transfer is observed by the electric dipole-electric dipole mechanism with a mean interaction distance only slightly greater than that which exists in the crystalline complexes. In the second, the excited state of Tb(pdc)33- is depopulated by energy transfer to the coexcited lowest excited triplet state of phenanthrene which is thereby excited to the second triplet state. |
| DOI: 10.12693/APhysPolA.84.985 PACS numbers: 33.50.-j, 34.20.-b, 76.30.Kg |