Solvent effects of N‐nitroso, N‐(2‐chloroethyl), N′,N′‐dibenzylsulfamid and its copper(II) and cobalt(II) complexes: fluorescence studies

Nadjia Bensouilah; Hassina Fisli; Nabila Dhaoui; Nourredine Benali‐Cherif; Mohamed Abdaoui

doi:10.1002/bio.1393

journal article Jan 04, 2012

Solvent effects of N‐nitroso, N‐(2‐chloroethyl), N′,N′‐dibenzylsulfamid and its copper(II) and cobalt(II) complexes: fluorescence studies

Nadjia Bensouilah Hassina Fisli Nabila Dhaoui Nourredine Benali‐Cherif Mohamed Abdaoui

Luminescence Vol. 28 No. 1 pp. 30-37 · Wiley

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Abstract

ABSTRACTThe structure of N‐nitroso, N‐(2‐chloroethyl), N′,N′‐dibenzylsulfamid (CENS) was established by X‐ray crystallography. The atomic coordinates, factors of isotropic thermal agitation, bond lengths and valence angles were determined. The solvent effects on the electronic absorption and fluorescence spectra of CENS were investigated at room temperature. The effects of solvent polarity and of hydrogen bonding were interpreted by means of linear solvation energy relationships (LSERs). Multiple linear regression analysis indicated that the hydrogen donation properties of the solvent play an important role in determining the position of the absorption maximum, while the classical polarity of the medium is the only dominating parameter in determining the emission maximum and the Stokes' shift. Complexation of the investigated compound by two different transition metal ions was studied. Fluorescence measurements show that fluorescence quenching by cobalt(II) is more important than that by copper(II). This phenomenon can be attributed to good stereo‐structural matching between the electronic configuration of the Co2+ ion and the active site distribution of CENS in aqueous solution. Copyright © 2012 John Wiley & Sons, Ltd.

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Details

Published: Jan 04, 2012
Vol/Issue: 28(1)
Pages: 30-37
License: View

Authors

N

Nadjia Bensouilah

Laboratory of Applied Chemistry University of May 8th 1945 BP 401 Guelma Algeria

H

Hassina Fisli

Laboratory of Applied Chemistry University of May 8th 1945 BP 401 Guelma Algeria

N

Nabila Dhaoui

Laboratory of Applied Chemistry University of May 8th 1945 BP 401 Guelma Algeria

N

Nourredine Benali‐Cherif

Laboratory of Structures, Proprieties and Inter‐atomic Interactions University Centre of Khenchla Algeria

M

Mohamed Abdaoui

Laboratory of Applied Chemistry University of May 8th 1945 BP 401 Guelma Algeria

Cite This Article

Nadjia Bensouilah, Hassina Fisli, Nabila Dhaoui, et al. (2012). Solvent effects of N‐nitroso, N‐(2‐chloroethyl), N′,N′‐dibenzylsulfamid and its copper(II) and cobalt(II) complexes: fluorescence studies. Luminescence, 28(1), 30-37. https://doi.org/10.1002/bio.1393

Solvent effects of N‐nitroso, N‐(2‐chloroethyl), N′,N′‐dibenzylsulfamid and its copper(II) and cobalt(II) complexes: fluorescence studies

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