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139448

A Spectroscopic and Photochemical Behavior of Some Coumarin Derivatives

Article

Last updated: 23 Jan 2023

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Abstract

The electronic absorption, emission spectra as well as fluorescence quantum yields of some
coumarin derivatives were measured in different solvents of different polarities. pKa and pKa* were calculated
using universal buffers.
The dyes undergo micellization in different micelles and may be used as a probe to determine the critical
micelle concentrations (CMC) of CTAB and SDS. The effect of metal ions like [Cu+2, Co+3, Ni+2] as quenchers
and the effect of temperature on quenching are studied and thermodynamic parameters have been calculated.

DOI

10.21608/djs.2017.139448

Keywords

fluorescence quantum yield, coumarin derivatives, metal ion quencher

Authors

First Name

Mohamed.Y.

Last Name

El-Sheikh

MiddleName

-

Affiliation

Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt

Email

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Orcid

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First Name

Saleh. A.

Last Name

Azim

MiddleName

-

Affiliation

Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt

Email

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City

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Orcid

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First Name

Ali. K.

Last Name

Abou Saif

MiddleName

-

Affiliation

Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt

Email

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City

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Orcid

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First Name

Ehab. A.

Last Name

Okba

MiddleName

-

Affiliation

Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt

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Orcid

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Volume

38

Article Issue

2

Related Issue

20624

Issue Date

2017-12-01

Receive Date

2021-01-14

Publish Date

2017-12-01

Page Start

183

Page End

193

Print ISSN

1012-5965

Online ISSN

2735-5306

Article File

DJS_Volume 38_Issue 2_Pages 183-193.pdf

PDF . 3.5MB

Link

https://djs.journals.ekb.eg/article_139448.html

Detail API

https://djs.journals.ekb.eg/service?article_code=139448

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6

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Research and Reference

Type Code

1,686

Publication Type

Journal

Publication Title

Delta Journal of Science

Publication Link

https://djs.journals.ekb.eg/

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Article

Created At

23 Jan 2023