Temperature deactivation of excited Tb3+ in the presence of 1,2-dioxetane in acetonitrile |
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| Authors: | N Sh Ableeva A I Voloshin S S Ostakhov A G Kukovinets V N Korobeinikova V P Kazakov G A Tolstikov |
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| Institution: | (1) Institute of Organic Chemistry, Ufa Research Center of Ural Branch of the Russian Academy of Scince, 71 prosp. Oktyabrya, 450054 Ufa, Russian Federation |
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| Abstract: | Quenching the fluorescence (FL) of terbium perchlorate by 2,2 -adamantane-2,2-dioxide (1) was shown to have a chemical character and was caused by the formation of the 1...Tb3+] complex. The dependence of the lifetime ( ) of FL of Tb*3+ in acetonitrile on the temperature and concentration of1 has been studied. The temperature dependence of is caused by a rearrangement of the inner sphere of the aquasolvate complexes of Tb3+, which leads to the replacement of H2O with MeCN and1. The energy of replacing the H2O molecule in the inner sphere of complexes with a solvent molecule has been calculated.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 10, pp. 1762–1766, October, 1994. |
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| Keywords: | chemiluminescence fluorescence Tb(ClO4)3· 6H2O 2 2 -adamantane-2" target="_blank">gif" alt="prime" align="BASELINE" BORDER="0">-adamantane-2 2-dioxide" target="_blank">gif" alt="prime" align="BASELINE" BORDER="0">-dioxide lifetime quenching |
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