Luminescent supramolecular architectures: A cyclodextrin modified with a europium(III) crown swing
- Michigan State Univ., East Lansing (United States)
A new photoactive supramolecular assembly featuring a cyclodextrin modified with a Eu{sup 3+} {contained in} aza crown ether has been prepared. The authors report the complete characterization of the crown-modified cyclodextrin as well as the synthesis and photophysical properties when Eu{sup 3+} occupies the aza receptor site. The luminescence properties of the cyclodextrin appended with Eu{sup 3+} {contained in} aza mimic that of the simple Eu{sup 3+} {contained in} aza complex. However, enhanced europium emission is observed upon the introduction of benzene to solutions of the supramolecular assembly. They attribute this enhancement to an absorption-energy-transfer-emission process from benzene in the cavity of cyclodextrin to Eu{sup 3+} ion residing in the appended aza macrocycle.
- DOE Contract Number:
- AC22-88PC88948
- OSTI ID:
- 7011786
- Journal Information:
- Inorganic Chemistry; (United States), Journal Name: Inorganic Chemistry; (United States) Vol. 31:4; ISSN 0020-1669; ISSN INOCA
- Country of Publication:
- United States
- Language:
- English
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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500* -- Photochemistry
ABSORPTION SPECTRA
ALCOHOLS
AROMATICS
BENZENE
CARBOHYDRATES
CHEMICAL PREPARATION
CHEMICAL REACTION KINETICS
CHEMISTRY
COMPLEXES
DEXTRIN
EMISSION SPECTRA
ENERGY LEVELS
ENERGY TRANSFER
EUROPIUM COMPLEXES
EXCITED STATES
FOURIER TRANSFORM SPECTROMETERS
GLYCOLS
HYDROCARBONS
HYDROXY COMPOUNDS
INFRARED SPECTRA
KINETICS
LIGANDS
LUMINESCENCE
MASS SPECTRA
MEASURING INSTRUMENTS
NMR SPECTRA
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PHOTOCHEMISTRY
POLYETHYLENE GLYCOLS
POLYMERS
POLYSACCHARIDES
RARE EARTH COMPLEXES
REACTION KINETICS
SACCHARIDES
SPECTRA
SPECTROMETERS
SYNTHESIS