Fluorescence Quenching of 2-amino-7-bromofluorene by Chloromethanes – Static and Dynamic Model for CCl4 Quenching in Polar Solvents-Reference-Cited by-同舟云学术

Fluorescence Quenching of 2-amino-7-bromofluorene by Chloromethanes – Static and Dynamic Model for CCl4 Quenching in Polar Solvents

Published:2001-12 Issue:12 Volume:2001 Page:503-504
ISSN:1747-5198
Container-title:Journal of Chemical Research
language:en
Short-container-title:Journal of Chemical Research

Author:

Radha N.¹,Swaminathan M.¹

Affiliation:

1. Department of Chemistry, Annamalai University, Annamalainagar – 608 002, India

Abstract

The study of fluorescence quenching of 2-amino-7-bromofluorene (ABF) by chloromethanes (CH2Cl2, CHCl3, CCl4) in various solvents reveals that (i) the quenching constant kq depends on solvent viscosity for CCl4 and on solvent polarity for CH2Cl2 and CHCl3; (ii) the observed positive deviation in methanol and acetonitrile in the Stern–Volmer plot is due to the presence of a static component in quenching; (iii) the fluorescence quenching is mainly due to the formation of a non-emissive charge transfer complex in the excited state.

Publisher

SAGE Publications

Subject

General Chemistry

Link

http://journals.sagepub.com/doi/pdf/10.3184/030823401103168730

Reference7 articles.

1. Wavelength Effects in Fluorescence Quenching. Aromatic Hydrocarbons Quenched by Carbon Tetrachloride

2. Intermolecular quenching of the second excited state of some aromatic molecules

3. Static and dynamic model for 1-naphthol fluorescence quenching by carbon tetrachloride in dioxane—acetonitrile mixtures

4. Simultaneous presence of static and dynamic component in the fluorescence quenching for substituted naphthalene—CCl4 system

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