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Synthesis and specific fluoride binding properties of expanded dithiacalixphyrins

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Title Synthesis and specific fluoride binding properties of expanded dithiacalixphyrins
 
Creator GANAPATHI, E
CHATTERJEE, T
RAVIKANTH, M
 
Subject X-RAY-STRUCTURE
ANION-BINDING
PORPHYRIN DYADS
MESO-ARYL
CALIXPYRROLES
CALIXPHYRINS
MACROCYCLES
PORPHODIMETHENES
PORPHOMETHENES
 
Description Expanded dithiacalixphyrins with the N2S2 core containing two sp(3) and three sp(2) meso-carbons have been prepared by condensation of one equivalent of butene-2,3-diyl-bisthiophene-2,5-diyl-bis(p-methoxy-phenylmethanol) with one equivalent of 5,5'-dialkyldipyrromethane under mild acid catalyzed conditions in decent yields. The expanded dithiacalixphyrins were characterized by HR-MS, 1D and 2D NMR techniques and the structure of one of the expanded dithiacalixphyrin macrocycles was solved by X-ray crystallography. The crystal structure analysis indicated that the macrocycle is highly distorted and attains a boat shaped structure. The expanded thiacalixphyrins showed a specific sensing ability for F-ions over other anions as judged from absorption, NMR and mass spectral studies.
 
Publisher ROYAL SOC CHEMISTRY
 
Date 2016-01-15T06:48:32Z
2016-01-15T06:48:32Z
2015
 
Type Article
 
Identifier DALTON TRANSACTIONS, 44(6)2763-2770
1477-9226
1477-9234
http://dx.doi.org/10.1039/c4dt03215b
http://dspace.library.iitb.ac.in/jspui/handle/100/17972
 
Language en