Solvent effect and amine interference on colorimetric changes of azobenzene-conjugated dithiaazadioxo crown ether mercury sensor

Cited 10 time in scopus
Metadata Downloads
Title
Solvent effect and amine interference on colorimetric changes of azobenzene-conjugated dithiaazadioxo crown ether mercury sensor
Author(s)
Chang Hoon Jeon; Jayeon Lee; S J Ahn; Tai Hwan Ha
Bibliographic Citation
Tetrahedron Letters, vol. 54, no. 50, pp. 6841-6847
Publication Year
2013
Abstract
The colorimetric behavior of an azobenzene-based dye containing dithiaazadioxo ring for Hg2+-detection was investigated in diverse solvents. The mercury specific ligand shows hypsochromic changes in pure and aqueous MeCN upon Hg2+-binding while strong bathochromic shift was observed in chloroform. In both solvent systems, dithiaazadioxo ring is revealed to be indispensable to the selective detection of mercury ion, and several binding schemes in different solvents were proposed on the selective Hg2+ binding. Grafted on cationic polymer (PEI) through amide coupling, it was observed that the ligand basically maintains the Hg2+ detection capability, but substantially hindered by amine moieties in PEI. Crown
Keyword
AzobenzeneColorimetric mercury sensorDithiaazadioxo crown etherHeavy metal ionsPolyethylene iminePush-pull dipole
ISSN
0040-4039
Publisher
Elsevier
DOI
http://dx.doi.org/10.1016/j.tetlet.2013.10.013
Type
Article
Appears in Collections:
Division of Bio Technology Innovation > Core Research Facility & Analysis Center > 1. Journal Articles
Files in This Item:
  • There are no files associated with this item.


Items in OpenAccess@KRIBB are protected by copyright, with all rights reserved, unless otherwise indicated.