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Fading of a novel colorimetric receptor after recognizing H2PO4

A novel selective and sensitive colorimetric receptor 1 (1, 10-phenanthroline-2, 9-dialdehyde bis-(-p-nitrophenylureasemicarbo-hydrazone)) based on urea showing distinctive color fading phenomenon towards H 2 PO 4 − ion was reported. Fancifully, the recognition process of receptor 1 to H 2 PO 4 − wa...

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Published in:Supramolecular chemistry 2018-08, Vol.30 (8), p.681-686
Main Authors: Li, Dan, Zheng, Shibing, Lin, Huakuan, Yang, Zhongyue, Huang, Weiwei
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Language:English
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creator Li, Dan
Zheng, Shibing
Lin, Huakuan
Yang, Zhongyue
Huang, Weiwei
description A novel selective and sensitive colorimetric receptor 1 (1, 10-phenanthroline-2, 9-dialdehyde bis-(-p-nitrophenylureasemicarbo-hydrazone)) based on urea showing distinctive color fading phenomenon towards H 2 PO 4 − ion was reported. Fancifully, the recognition process of receptor 1 to H 2 PO 4 − was not interfered by the existence of others anions. We have probed the binding mechanism of 1-H 2 PO 4 − that H 2 PO 4 − ion induced competitive hydrogen binding process via intramolecular hydrogen-bond by UV-vis, fluorescence, 1 H NMR titrations and ESI-MS experiments.
doi_str_mv 10.1080/10610278.2018.1442004
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Fancifully, the recognition process of receptor 1 to H 2 PO 4 − was not interfered by the existence of others anions. 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source Taylor and Francis Science and Technology Collection
subjects Binding
Color fading
Colorimetric
Colorimetry
Fluorescence
Hydrazones
hydrogen bonds
naked-eye
NMR
Nuclear magnetic resonance
title Fading of a novel colorimetric receptor after recognizing H2PO4
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