Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/xmlui/handle/100/17982
Title: Charge transfer aided selective sensing and capture of picric acid by triphenylbenzenes
Authors: VISHNOI, P
SEN, S
PATWARI, GN
MURUGAVEL, R
Keywords: Aggregation-Induced Emission
Crystal-Structures
Hydrogen-Bonds
Solid-State
Explosives
2,4,6-Trinitrophenol
Enhancement
Sensitivity
Polymers
Issue Date: 2015
Publisher: ROYAL SOC CHEMISTRY
Citation: NEW JOURNAL OF CHEMISTRY, 39(2)886-892
Abstract: A fluorescent chemo-sensor, 1,3,5-tris(4'-(N,N-dimethylamino)phenyl)benzene was synthesized by substituting the N-H protons of 1,3,5-tris(4'-aminophenyl)benzene with methyl groups. The chemo-sensor shows highly selective and remarkable fluorescence quenching in the presence of picric acid with a detection limit of 1.5 ppm. The origin of the selectivity was investigated using absorption, fluorescence emission and H-1 NMR spectroscopic techniques. The solid state structure of 1,3,5-tris(4'-(N,N-dimethylamino)phenyl)benzene and its picric acid complex reveals multiple hydrogen bonds (N-H center dot center dot center dot O and C-H center dot center dot center dot O), pi-pi interactions and electrostatic interactions between 1,3,5-tris(4'-(N,N-dimethylamino) phenyl) benzene and picric acid. The proton transfer process from picric acid to 1,3,5-tris(4'-(N,N-dimethylamino)phenyl)benzene results in the formation of picrate anions and the triply protonated 1,3,5-tris(4'-(N,N-dimethylamino)phenyl)benzene species containing dimethylammonium (-NHMe2+) groups.
URI: http://dx.doi.org/10.1039/c4nj01093k
http://dspace.library.iitb.ac.in/jspui/handle/100/17982
ISSN: 1144-0546
1369-9261
Appears in Collections:Article

Files in This Item:
There are no files associated with this item.


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