Issue 32, 2012
From the journal:

RSC Advances

Interaction of soft donor sites with a hard metal ion: crystallographically characterized blue emitting fluorescent probe for Al(iii) with cell staining studies†

Debasis Karak,a   Sisir Lohar,a   Arnab Banerjee,a   Animesh Sahana,a   Ipsit Hauli,b   Subhra Kanti Mukhopadhyay,b   Jesús Sanmartín Matalobos*c  and  Debasis Das*a  

* Corresponding authors

a Department of Chemistry, The University of Burdwan, Burdwan, West Bengal, India

b Department of Microbiology, The University of Burdwan, Burdwan, West Bengal, India

c Departamento de Química Inorgánica, Facultade de Química, Avda. Das Ciencias s/n, Santiago de Compostela, Spain
E-mail: ddas100in@yahoo.com
Fax: +91-342-2530452
Tel: +91-342-2533913

Abstract

A naphthalene based compound, 1-((E)-(2-(2-(phenylthio)ethylthio)phenylimino)methyl)naphthalen-2-ol (L2) has been synthesized and characterized by FTIR, 1H NMR, mass spectra and single crystal X-ray structure analysis. L2 shows a blue shift with a large fluorescence enhancement in the presence of Al3+ which is attributed to a chelation-enhanced fluorescence (CHEF) effect with inhibition of an intramolecular charge transfer (ICT) process and cis/trans isomerization. L2 binds to Al3+ with 2 : 1 stoichiometry (mole ratio) with an association constant (Ka) of 0.15 × 104 M−1/2. The detection limit for Al3+ is 5 × 10−8 M in DMSO/H2O (1 : 2, v/v). L2 can efficiently detect intracellular Al3+ under fluorescence microscope

Graphical abstract: Interaction of soft donor sites with a hard metal ion: crystallographically characterized blue emitting fluorescent probe for Al(iii) with cell staining studies

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Article information

DOI
https://doi.org/10.1039/C2RA21911E
Article type
Paper
Submitted
23 Aug 2012
Accepted
17 Oct 2012
First published
19 Oct 2012

RSC Adv., 2012,2, 12447-12454

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Interaction of soft donor sites with a hard metal ion: crystallographically characterized blue emitting fluorescent probe for Al(III) with cell staining studies

D. Karak, S. Lohar, A. Banerjee, A. Sahana, I. Hauli, S. K. Mukhopadhyay, J. Sanmartín Matalobos and D. Das, RSC Adv., 2012, 2, 12447 DOI: 10.1039/C2RA21911E

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