Fluorescence properties of crown ethers with phenylbenzothiozole pendant group

被引：9

作者：

Kapoor, S ^{[1
]}

Sapre, AV

Kumar, S

Mashraqui, SH

Mukherjee, T

机构：

[1] Bhabha Atom Res Ctr, Chem Grp, Radiat Chem & Chem Dynam Div, Bombay 400085, Maharashtra, India

[2] Univ Bombay, Dept Chem, Bombay 400098, Maharashtra, India

来源：

CHEMICAL PHYSICS LETTERS | 2005年 / 408卷 / 4-6期

关键词：

D O I：

10.1016/j.cplett.2005.04.032

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：

Photophysical characteristics of 2-phenylbenzothiazole (PBT) substituted crown ether (CRE-PBT) molecules have been investigated in various polar protic solvents. Large Stokes' and good solvatochromic shifts have been observed for CRE-PBT molecules. It is seen that in these molecules, the fluorescence lifetimes and quantum yields increase as compared to the pristine PBT molecule. Temperature-dependence studies have been carried out to understand the effect of CRE substitution and the role of C-C single bond rotation on the fluorescence quantum yield and lifetime. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：290 / 294

页数：5

共 20 条

[1]

Alfimov M., 1999, Applied Fluorescence in Chemistry, Biology and Medicine, P161

[2]

ALFIMOV MV, 1992, NATO ADV SCI I C-MAT, V371, P343

[3] TRIPLET-STATE FORMATION AND CIS-]TRANS ISOMERIZATION IN THE EXCITED SINGLET-STATE OF THE KETO TAUTOMER OF 2-(2'-HYDROXYPHENYL)BENZOTHIAZOLE [J].

ALSOUFI, W ;

GRELLMANN, KH ;

NICKEL, B .

CHEMICAL PHYSICS LETTERS, 1990, 174 (06) :609-616

[4]

Atkins P.W., 1994, Physical Chemistry, V5th ed.

[5] A COMPARATIVE-STUDY - THE PHOTOPHYSICS OF 2-PHENYLBENZOXAZOLES AND 2-PHENYLBENZOTHIAZOLES [J].

CHOU, PT ;

COOPER, WC ;

CLEMENTS, JH ;

STUDER, SL ;

CHANG, CP .

CHEMICAL PHYSICS LETTERS, 1993, 216 (3-6) :300-304

[6] Photoinduced intramolecular hydrogen atom transfer in 2-(2-hydroxyphenyl)benzoxazole and 2-(2-hydroxyphenyl)-benzothiazole studied by laser flash photolysis [J].

Ikegami, M ;

Arai, T .

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2, 2002, (07) :1296-1301

[7]

Jiwan JLH, 1998, J PHOTOCH PHOTOBIO A, V116, P127

[8] CHROMOIONOPHORES AND FLUOROIONOPHORES - A NEW CLASS OF DYE REAGENTS [J].

LOHR, HG ;

VOGTLE, F .

ACCOUNTS OF CHEMICAL RESEARCH, 1985, 18 (03) :65-72

[9] Synthesis, cation-binding and optical spectral studies of photoemmitive benzothiazole crown ethers [J].

Mashraqui, SH ;

Kumar, S ;

Vashi, D .

JOURNAL OF INCLUSION PHENOMENA AND MACROCYCLIC CHEMISTRY, 2004, 48 (3-4) :125-130

[10] QUANTUM EFFICIENCIES OF FLUORESCENCE OF ORGANIC SUBSTANCES - EFFECT OF SOLVENT AND CONCENTRATION OF FLUORESCENT SOLUTE [J].

MELHUISH, WH .

JOURNAL OF PHYSICAL CHEMISTRY, 1961, 65 (02) :229-&

← 1 2 →