Record Details

Chemosensing ability of hydroxynaphthylidene derivatives of hydrazine towards Cu2+: Experimental and computational studies

DSpace at IIT Bombay

View Archive Info
 
 
Field Value
 
Title Chemosensing ability of hydroxynaphthylidene derivatives of hydrazine towards Cu2+: Experimental and computational studies
 
Creator DESSINGIOU, J
KHEDKAR, JK
RAO, CP
 
Subject Ion recognition
copper sensor
hydroxynapthylidene derivative of hydrazine
heterocycle
fluorescence quenching
FLUORESCENT SENSOR
HEPES BUFFER
OFF-ON
CU(II)
RECOGNITION
COPPER
IONS
 
Description 2-Hydroxynaphthylidene derivatives of hydrazine, namely L-1, L-2 and L-3, were synthesized by going through two-step reactions and the products were characterized. The ion recognition properties of these receptors were studied using fluorescence and absorption spectroscopy. The receptors were found to be sensitive and selective towards Cu2+ in methanol solution among the 13 metal ions studied, namely Mn2+, Fe2+, Co2+, Ni2+, Cu2+, Zn2+, Cd2+, Hg2+, Pb2+, Na+, K+, Ca2+ and Mg2+, by exhibiting switch off fluorescence. The stoichiometry of the complexed species was found to be 2:1. The fluorescence quenching with Cu2+ is in the order of L-1 > L-2 > L-3. These conjugates were also found to act as coloriraetric sensors for Cu2+ in solution by exhibiting visual colour change. The 2:1 complex shows a centrosymmetric structure based on DFT computations.
 
Publisher INDIAN ACAD SCIENCES
 
Date 2014-12-28T09:06:39Z
2014-12-28T09:06:39Z
2014
 
Type Article
 
Identifier JOURNAL OF CHEMICAL SCIENCES, 126(4)1135-1141
0974-3626
0973-7103
http://dspace.library.iitb.ac.in/jspui/handle/100/16245
 
Language English