A thiacalix[4]crown based chemosensor for Zn2+ and H2PO4-: Sequential logic operations at the molecular level

Sharma, Neetu ; Reja, Shahi Imam ; Bhalla, Vandana ; Kumar, Manoj (2015) A thiacalix[4]crown based chemosensor for Zn2+ and H2PO4-: Sequential logic operations at the molecular level Dalton Transactions, 44 (13). pp. 6062-6068. ISSN 1477-9226

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Official URL: http://pubs.rsc.org/en/content/articlelanding/2015...

Related URL: http://dx.doi.org/10.1039/C5DT00082C

Abstract

A thiacalix[4]crown based di-topic receptor 3 possessing two types of binding sites viz. crown-5 ring and imino moieties has been synthesized which undergoes fluorescence enhancement in the presence of Zn2+ ions. The selective binding of Zn2+ to compound 3 does not allow the K+ ions to bind with the crown-5 ring and thus a negative allosteric behaviour has been observed between Zn2+/K+ ions. In addition, the 3-Zn2+ complex can be used for the detection of H2PO4 ions with a fluorescence “turn-off” response. Furthermore, based on the fluorescence response, a two input and one output sequential logic circuit has been constructed.

Item Type:Article
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ID Code:113492
Deposited On:16 May 2018 06:42
Last Modified:16 May 2018 06:42

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