Phosphorescence lifetime of naphthalene and phenanthrene in aggregated aromatic molecule-beta-cyclodextrin-precipitant complexes

被引：13

作者：

Nazarov, VB

Gerko, VI

Alfimov, MV

机构：

来源：

RUSSIAN CHEMICAL BULLETIN | 1996年 / 45卷 / 09期

关键词：

triplet state; water; beta-cyclodextrin; naphthalene-d(8); naphthalene-h(8); phenanthrene; complexes; precipitant; cyclohexane; hexane; chloroform; isooctane; decalin temperature dependence; phosphorescence at room temperature; quenching;

D O I：

10.1007/BF01430720

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Aggregated aromatic molecule-beta-cyclodextrin-precipitant complexes exhibit long-lived phosphorescence at room temperature in water after the chemical binding of oxygen. The temperature dependences of the phosphorescence lifetimes of naphthalene-h(g), naphthalene-d(g), and phenanthrene in the aggregates were measured. For example, the phosphorescence lifetimes of naphthalene-d(g) aggregated with beta-cyclodextrin and cyclohexane are equal to 25.1, 17.6, and 6.8 s at 77, 276, and 347 K, respectively, and that of phenanthrene aggregated with isooctane and beta-cyclodextrin are 3.24, 3.06, and 1.26 s at 268, 274, and 335 K, respectively. The temperature dependences of the phosphorescence lifetimes at room temperature are determined by the rate constants of the radiative and nonradiative transitions from the triplet state of an aromatic molecule.

引用

页码：2109 / 2112

页数：4

共 33 条

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Nazarov, VB
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Nazarov, V. B.
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Vershinnikova, T. G.
Alfimov, M. V.
RUSSIAN CHEMICAL BULLETIN, 2005, 54 (12) : 2752 - 2756
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T. G. Vershinnikova
M. V. Alfimov
Russian Chemical Bulletin, 2005, 54 : 2752 - 2756
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V. B. Nazarov
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M. V. Alfimov
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Makhrov, D. E.
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Alfimov, M. V.
HIGH ENERGY CHEMISTRY, 2025, 59 (01) : 15 - 21
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Nazarov, VB
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Alfimov, MV
JETP LETTERS, 1997, 65 (07) : 528 - 531
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Nazarov, VB
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RUSSIAN CHEMICAL BULLETIN, 1996, 45 (04) : 969 - 970
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Vershinnikova, TG
Alfimov, MV
RUSSIAN CHEMICAL BULLETIN, 1999, 48 (10) : 1998 - 2000
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M. V. Alfimov
Russian Chemical Bulletin, 1999, 48 : 1998 - 2000

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