Laser-induced optoacoustic studies of the non-radiative deactivation of ICT probes DMABN and DMABA

被引：32

作者：

Chattopadhyay, N

Rommens, J

VanderAuweraer, M

DeSchryver, FC

机构：

[1] Lab. of Molec. Dynam. and Spectrosc., Department of Chemistry, Katholieke Universiteit Leuven, B-3001 Heverlee

[2] Department of Chemistry, Jadavpur University

来源：

CHEMICAL PHYSICS LETTERS | 1997年 / 264卷 / 3-4期

关键词：

D O I：

10.1016/S0009-2614(96)01354-1

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：

Laser induced optoacoustic spectroscopy has been used to determine the relative contribution of the intersystem crossing and internal conversion to the non-radiative energy dissipation from the two excited ICT probes p-N,N-dimethylaminobenzonitrile (DMABN) and p-N,N-dimethylaminobenzaldehyde (DMABA) in solvents of different polarity, It is observed that while intersystem crossing is the main non-radiative deactivation process for DMABN in all the solvents studied this is not the case in polar solvents for DMABA.

引用

收藏

页码：265 / 272

页数：8

相关论文

共 35 条

[1] ENVIRONMENTAL AND MAGNETIC-FIELD EFFECTS ON EXCIPLEX AND TWISTED CHARGE-TRANSFER EMISSION [J].

BHATTACHARYYA, K ;

CHOWDHURY, M .

CHEMICAL REVIEWS, 1993, 93 (01) :507-535

[2] DUAL AND MULTIPLE FLUORESCENCE MECHANISMS OF PARA-DIMETHYLAMINOBENZALDEHYDE AND ITS TRIMETHYLENE-BRIDGED DOUBLE MOLECULE [J].

DAHNE, S ;

FREYER, W ;

TEUCHNER, K ;

DOBKOWSKI, J ;

GRABOWSKI, ZR .

JOURNAL OF LUMINESCENCE, 1980, 22 (01) :37-49

[3] EXCITED AND GROUND-STATE CONFORMATIONS OF P-DIMETHYLAMINO-BENZALDEHYDE AND P-DIMETHYLAMINOACETOPHENONE [J].

DOBKOWSKI, J ;

KIRKORKAMINSKA, E ;

KOPUT, J ;

SIEMIARCZUK, A .

JOURNAL OF LUMINESCENCE, 1982, 27 (04) :339-355

[4] Pressure- and light-induced luminescence of several aldehydes dissolved in polymer matrices [J].

Dreger, ZA ;

Lang, JM ;

Drickamer, HG .

JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (11) :4646-4653

[5] UNUSUAL PHOSPHORESCENCE AND ITS PRESSURE-DEPENDENCE IN 4-N,N-DIMETHYLAMINOBENZONITRILE DISSOLVED IN SOLID POLYMERS [J].

DREGER, ZA ;

LANG, JM ;

DRICKAMER, HG .

CHEMICAL PHYSICS LETTERS, 1995, 232 (04) :351-356

[6] LASER FLASH-PHOTOLYSIS STUDY OF THE EFFECTS OF SUBSTITUENTS, SOLVENTS, AND QUENCHERS ON THE TRIPLET-STATE OF BENZALDEHYDES - H/D EXCHANGE FOLLOWING QUENCHING BY D2O [J].

GORNER, H ;

KUHN, HJ .

JOURNAL OF PHYSICAL CHEMISTRY, 1986, 90 (22) :5946-5955

[7] INTRAMOLECULAR CHARGE-TRANSFER EXCITED-STATE RELAXATION PROCESSES IN PARASUBSTITUTED N,N-DIMETHYLANILINE - A THEORETICAL-STUDY INCLUDING SOLVENT EFFECTS [J].

GORSE, AD ;

PESQUER, M .

JOURNAL OF PHYSICAL CHEMISTRY, 1995, 99 (12) :4039-4049

[8] STRUCTURE OF THE TWISTED-INTRAMOLECULAR-CHARGE-TRANSFER EXCITED SINGLET AND TRIPLET-STATES OF 4-(DIMETHYLAMINO)BENZONITRILE AS STUDIED BY NANOSECOND TIME-RESOLVED INFRARED-SPECTROSCOPY [J].

HASHIMOTO, M ;

HAMAGUCHI, H .

JOURNAL OF PHYSICAL CHEMISTRY, 1995, 99 (20) :7875-7877

[9] THE DYNAMICS OF BARRIER CROSSINGS IN SOLUTION - THE EFFECT OF A SOLVENT POLARITY-DEPENDENT BARRIER [J].

HICKS, J ;

VANDERSALL, M ;

BABAROGIC, Z ;

EISENTHAL, KB .

CHEMICAL PHYSICS LETTERS, 1985, 116 (01) :18-24

[10] INVESTIGATION OF SINGLET -] TRIPLET TRANSITIONS BY PHOSPHORESCENCE EXCITATION METHOD .3. AROMATIC KETONES AND ALDEHYDES [J].

KEARNS, DR ;

CASE, WA .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1966, 88 (22) :5087-&

← 1 2 3 4 →