Effect of high magnetic fields on intramolecular exciplex fluorescence of pyrene and dimethylaniline systems

被引：11

作者：

De, R ^{[1
]}

Fujiwara, Y ^{[1
]}

Haino, T ^{[1
]}

Tanimoto, Y ^{[1
]}

机构：

[1] Hiroshima Univ, Fac Sci, Dept Chem, Hiroshima 7398526, Japan

来源：

CHEMICAL PHYSICS LETTERS | 1999年 / 315卷 / 5-6期

基金：

日本学术振兴会;

关键词：

D O I：

10.1016/S0009-2614(99)01243-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The effect of high magnetic fields (<13 T) on the intramolecular exciplex fluorescence generated from chain-linked pyrene and dimethylaniline systems is studied in acetonitrile. On increasing the magnetic field from 0 to ca. 1 T, the exciplex fluorescence intensity increases and then decreases gradually for fields up to ca. 8 T. The exciplex fluorescence lifetime exhibits a magnetic field dependence similar to that for the intensity (<13 T). The reversal of the effect in the high magnetic field region is interpreted in terms of a Delta g mechanism. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：383 / 389

页数：7

共 22 条

[1]

[Anonymous], 1998, DYNAMIC SPIN CHEM

[2] TIME-RESOLVED AND MODULATION METHODS IN THE STUDY OF THE EFFECTS OF MAGNETIC-FIELDS ON THE YIELDS OF FREE-RADICAL REACTIONS [J].

BATCHELOR, SN ;

KAY, CWM ;

MCLAUCHLAN, KA ;

SHKROB, IA .

JOURNAL OF PHYSICAL CHEMISTRY, 1993, 97 (50) :13250-13258

[3] MAGNETIC SPIN EFFECTS ON PHOTOOXIDATION QUANTUM YIELDS OF RU-II-TRIS(BIPYRIDINE) TYPE COMPLEXES IN MAGNETIC-FIELDS UP TO 17.5 TESLA [J].

BURSSNER, D ;

WOLFF, HJ ;

STEINER, UE .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1994, 33 (17) :1772-1775

[4] Magnetic field effects on intramolecular exciplex fluorescence of chain-linked phenanthrene and N,N-dimethylaniline: Influence of chain length, solvent, and temperature [J].

Cao, H ;

Fujiwara, Y ;

Haino, T ;

Fukazawa, Y ;

Tung, CH ;

Tanimoto, Y .

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 1996, 69 (10) :2801-2813

[5] EFFECT OF A HIGH MAGNETIC-FIELD ON THE DECAY-RATE OF CHAIN-LINKED INTRAMOLECULAR EXCIPLEX FLUORESCENCE [J].

CAO, H ;

MIYATA, K ;

TAMURA, T ;

FUJIWARA, Y ;

TANIMOTO, Y ;

OKAZAKI, M ;

IWAI, K ;

YAMAMOTO, M .

CHEMICAL PHYSICS LETTERS, 1995, 246 (1-2) :171-175

[6] Effects of high magnetic field on the intramolecular exciplex fluorescence of chain-linked phenanthrene and dimethylaniline [J].

Cao, H ;

Miyata, K ;

Tamura, T ;

Fujiwara, Y ;

Katsuki, A ;

Tung, CH ;

Tanimoto, Y .

JOURNAL OF PHYSICAL CHEMISTRY A, 1997, 101 (04) :407-411

[7] MAGNETIC-FIELD EFFECT AND MULTIPLICITY OF CONFORMATION IN A POLYMER-LINKED EXCIPLEX SYSTEM [J].

DUTTA, R ;

NATH, D ;

CHOWDHURY, M ;

WINNICK, MA .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 1994, 84 (03) :265-269

[8] EXCIMER FORMATION FROM TRIPLET TRIPLET ANNIHILATION REACTIONS OF THE LOWEST-LYING TRIPLET EXCITED-STATE IN ALUMINUM(III), SILICON(IV), AND METAL-FREE PHTHALOCYANINES - MEDIUM AND MAGNETIC-FIELD EFFECTS ON THE RATE OF REACTION [J].

FRINK, ME ;

GEIGER, DK ;

FERRAUDI, GJ .

JOURNAL OF PHYSICAL CHEMISTRY, 1986, 90 (09) :1924-1927

[9] Effect of high magnetic fields on the reverse electron transfer process in an alpha-cyclodextrin inclusion complex of phenothiazine-viologen chain-linked compound [J].

Fujiwara, Y ;

Aoki, T ;

Yoda, K ;

Cao, H ;

Mukai, M ;

Haino, T ;

Fukazawa, Y ;

Tanimoto, Y ;

Yonemura, H ;

Matsuo, T ;

Okazaki, M .

CHEMICAL PHYSICS LETTERS, 1996, 259 (3-4) :361-367

[10]

HAYASHI H, 1990, PHOTOCHEM PHOTOBIOL, V1, P59

← 1 2 3 →