Effect of preferential solvation and bimolecular quenching reactions on 3OCE in acetonitrile and 1,4-dioxane binary mixtures by optical absorption and fluorescence studies

被引：5

作者：

Muttannavar, V. T. ^{[1
]}

Melavanki, Raveendra ^{[2
]}

Sharma, Kalpana ^{[2
]}

Vaijayanthimala, S. ^{[2
]}

Shelar, Vikas M. ^{[3
]}

Patil, S. S. ^{[4
]}

Naik, L. R. ^{[5
]}

机构：

[1] JSS Sci RSH PU Coll, Dept Phys, Vidyagiri Dharwad, Karnataka, India

[2] Ramaiah Inst Technol Bangaluru, Dept Phys, Bengaluru, Karnataka, India

[3] MS Ramaiah Univ Appl Sci, Fac Math & Phys Sci, Dept Phys, Bengaluru, Karnataka, India

[4] Govt RGSPU Coll, Dept Phys, Kittur, Karnataka, India

[5] Karnataka Univ, Dept Phys, Dharwad 580003, Karnataka, India

来源：

LUMINESCENCE | 2019年 / 34卷 / 08期

关键词：

3OCE; bimolecular quenching reactions and diffusion limited reaction; preferential solvation; Suppan's theory of dielectric enrichment; DIFFUSION-CONTROLLED REACTIONS; DIMETHYL-SULFOXIDE; SOLVENT; POLARITY; TRANSIENT; DYNAMICS;

D O I：

10.1002/bio.3692

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Fluorescence quenching and preferential solvation of a coumarin derivative, namely 3-[2-oxo-2-(2-oxo-2H-chromen-3-yl)-ethylidene]-1,3-dihydro-indol-2-one (3OCE), with aniline used as a quencher in solvent mixtures of acetonitrile (AN) and 1,4-dioxane (DX) was carried out at steady state. Suppan's theory of dielectric enrichment was used to understand the nonideality and dielectric enrichment in AN-DX solvent mixtures. The effect of viscosity and dielectric constant variation at room temperature were analyzed. Quenching was characterized using Stern-Volmer plots with an upward curvature. It was found that 3OCE underwent combined static and dynamic quenching that was evident from the quenching rate parameters.

引用

页码：924 / 932

页数：9

共 43 条

[1] KINETICS OF PARTLY DIFFUSION CONTROLLED REACTIONS .1. TRANSIENT AND APPARENT TRANSIENT EFFECT IN FLUORESCENCE QUENCHING [J].

ANDRE, JC ;

NICLAUSE, M ;

WARE, WR .

CHEMICAL PHYSICS, 1978, 28 (03) :371-377

[2]

Bhavya P., 2018, LUMINESCENCE, P1

[3] EXCIMER FLUORESCENCE .11. SOLVENT-SOLUTE ENERGY TRANSFER [J].

BIRKS, JB ;

CONTE, JC .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1968, 303 (1472) :85-+

[4]

Chen J. K., 2018, LANGMUIR, P6

[5] Label-free detection of microRNA based on the fluorescence quenching of silicon nanoparticles induced by catalyzed hairpin assembly coupled with hybridization chain reaction [J].

Ding, Longhua ;

Liu, Haiyun ;

Zhang, Lina ;

Li, Li ;

Yu, Jinghua .

SENSORS AND ACTUATORS B-CHEMICAL, 2018, 254 :370-376

[6]

Edward J. T., 1956, CHEM IND, V1, P774

[7] Preferential solvation of solvatochromic benzothiazolinic merocyanines in mixed binary solvents [J].

Fayed, T ;

Etaiw, SEH .

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 1998, 54 (12) :1909-1918

[8] About the effect of extinction processes in the sphere of fluorescent liquids. [J].

Frank, J. M. ;

Wawilow, S. J. .

ZEITSCHRIFT FUR PHYSIK, 1931, 69 (1-2) :100-110

[9] FLUORESCENCE QUENCHING OF INDOLES BY AMIDES [J].

FROEHLICH, PM ;

NELSON, K .

JOURNAL OF PHYSICAL CHEMISTRY, 1978, 82 (22) :2401-2403

[10] A negative deviation from Stern-Volmer equation in fluorescence quenching [J].

Htun, T .

JOURNAL OF FLUORESCENCE, 2004, 14 (02) :217-222

← 1 2 3 4 5 →