Intermolecular Energy Transfer Between Lanthanide Complex Ions in Micellar Solution

• Authors: W. Dong , C. Flint
• Languages of publication: EN

Abstracts

EN

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)_{3}^{3-} (pdc = pyridine 2,6-dicarboxylate) complex ions are held in close proximity to other Ln(pdc)_{3}^{3-} 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)_{3}^{3-} is depopulated by energy transfer to the coexcited lowest excited triplet state of phenanthrene which is thereby excited to the second triplet state.

Keywords

EN

33.50.-j; 34.20.-b; 76.30.Kg

Discipline

• 33.50.-j: Fluorescence and phosphorescence; radiationless transitions, quenching (intersystem crossing, internal conversion)(for energy transfer, see also section 34; for biophysical applications, see 87.64.kv)
• 76.30.Kg: Rare-earth ions and impurities
• 34.20.-b: Interatomic and intermolecular potentials and forces, potential energy surfaces for collisions(see also 82.20.Kh Potential energy surfaces for reactions; for potential energy surfaces in electronic structure calculations, see 31.50.-x)

• Journal: Acta Physica Polonica A
• Year: 1993
• Volume: 84
• Issue: 5
• Pages: 985-992

Dates

published

1993-11

Contributors

author

W. Dong

• Laser Laboratory, Department of Chemistry, Birkbeck College, University of London, Gordon House, 29 Gordon Square, London WC1H OPP, United Kingdom

author

C. Flint

• Laser Laboratory, Department of Chemistry, Birkbeck College, University of London, Gordon House, 29 Gordon Square, London WC1H OPP, United Kingdom

Identifiers

DOI

10.12693/APhysPolA.84.985