DSpace
 

DSpace at IIT Bombay >
IITB Publications >
Article >

Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/7473

Title: Selective recognition of Cu(2+) by di-O-picolyl derivative of 1,1 '-methylene-bis(2-naphthol)
Authors: BAGHEL, GS
RAMANUJAM, B
RAO, CP
Keywords: lower rim
hg2+ ion
complexes
fluorescence
sensor
cu(ii)
fluoroionophore
mercury(ii)
absorption
1-naphthol
Issue Date: 2009
Publisher: ELSEVIER SCIENCE SA
Citation: JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 202(40604), 172-177
Abstract: Di-derivatives of 1,1'-methylene-bis(2-naphthol) (L(1)) possessing ester (L(2)), carboxylic acid (L(3)) or picolyl (L(4)) as end groups of the pendants have been synthesized and characterized. Titration of these derivatives for their recognition towards M(2+) (where M = Mg, Ca, Mn, Fe, Co, Ni, Cu, Zn) were performed by following the fluorescence emission intensities in methanol solution. The picolyl derivative (L(4)) has been found to be well suited for Cu(2+) recognition (<= 630 ppb) via the formation of 1: 1 complex that was further proven based on absorption as well as ESI MS studies. On the other hand. L(1) and L(2) were mainly insensitive towards M(2+), where as the carboxylic derivative (L(3)) shows fluorescence changes with almost all the metal ions and hence none of the L(1), L(2) and L(3) are suited for any M(2+) recognition. The studies clearly suggested that the chemical nature of the functional groups and the coordination preferences of the metal ion seem to play important role in the selective recognition of the metal ion. (C) 2008
URI: http://dx.doi.org/10.1016/j.jphotochem.2008.11.021
http://dspace.library.iitb.ac.in/xmlui/handle/10054/7473
http://hdl.handle.net/10054/7473
ISSN: 1010-6030
Appears in Collections:Article

Files in This Item:

There are no files associated with this item.

View Statistics

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback