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Citation: Shou Hansen, Ye Jianping, Yu Qun. STUDIES ON LUMINESCENCE OF BENZOIC ACID-TERBIUM COMPLEXES[J]. Chinese Journal of Applied Chemistry, ;1988, 5(3): 9-14. shu

STUDIES ON LUMINESCENCE OF BENZOIC ACID-TERBIUM COMPLEXES

1.
Istitute of Photographic Chemistry, Academia Siaica

Received Date: 9 March 1987
Available Online: 11 July 1987

A new type lumincscent material, benzoic acid-terbium complexes are investigated by absorption, infrared, fluorescence and timc-resolved fluorescence spectroscopy. In the presence of Tb ion the fluorescence intensitics of benzoic acid (At) and its derivatives, 4-hydroxylbcnzoic acid (A2), 3-hydroxylbenzoic acid (A3), 2-hydroxylbenzoic acid(A4), markedly decreassed; and the fluorescence lifetime of acids remained unchanged. It is a typical example of static quenching process. The fluorescence intensity of acid-terbium complexes changes dramatically according to their structure, bonding strength and intramolecular encrgy transfer efficiency. The influences of solvents and pH value arc discussed also.
- Rare earth complexes,
- Terbium Luminescence,
- Energy transfer,
- Structure and property correlation,
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