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Issue 8, 2018
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Selective mercury ion recognition using a methyl red (MR) based silatrane sensor

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Abstract

A new methyl red (MR) based silatrane was synthesized in high yield by the transesterification reaction of methyl red-amidopropyltrimethoxysilane 1 (MR-APTMS) and trisisopropanolamine. Single crystal X-ray diffraction analysis was used to deduce the structure of silatrane 2 which was also supported by NMR (1H, 13C) spectroscopy, mass spectrometry, FTIR, UV-Vis and DFT studies. Silatrane 2 when surveyed for cation recognition ability with a library of metal ions in CH3CN/H2O (9 : 1, v/v) was found to act as an excellent UV-Vis probe for the selective recognition of Hg2+in vitro. Also, quantum mechanical calculations of the interaction complex [MR-APS-Hg]2+3 using DFT at the B3LYP level in conjunction with the LanL2DZ basis set determined the geometric and the stability parameters of the surveyed interaction.

Graphical abstract: Selective mercury ion recognition using a methyl red (MR) based silatrane sensor

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Publication details

The article was received on 12 Feb 2018, accepted on 13 Mar 2018 and first published on 14 Mar 2018


Article type: Paper
DOI: 10.1039/C8NJ00728D
Citation: New J. Chem., 2018,42, 6315-6321
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    Selective mercury ion recognition using a methyl red (MR) based silatrane sensor

    G. Singh, S. Girdhar, A. Singh, A. Saroa, J. S. Lakhi, S. Khullar and S. K. Mandal, New J. Chem., 2018, 42, 6315
    DOI: 10.1039/C8NJ00728D

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