A dithienosilole-based fluorescent chemosensor for multiple logic operations at the molecular level

文献类型: 外文期刊

第一作者: Zhang, Chen

作者: Zhang, Chen;Lu, Yahong;Wang, Junxing;He, Xingxing;Lu, Junting;Yin, Shouchun;Qiu, Huayu;Sun, Caixia

作者机构:

关键词: Fluorescent chemosensor;Logic gates;Dithienosilole;Terpyridine;Spectroscopic properties

期刊名称:SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY ( 影响因子:4.098; 五年影响因子:3.464 )

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收录情况: SCI

摘要: A chemosensor consisting of two terpyridines covalently linked to a dithienosilole unit (1) has been synthesized, and its optical and metal sensing properties have been investigated. Due to the metal-organic coordination function, 1 can bind with many transition metal ions and display different fluorescence responses that cause it to function as a "turn-off' fluorescent chemosensor. A significant bathochromic shift in the fluorescence spectra is observed in the presence of Zn2+. Meanwhile, the emission of 1 is weakened upon exposure to Ag+ and Fe2+ and completely quenched by Ni2+, Co2+, and Cu2+. Based on the observed results, several logic gates, such as XNOR, INHIBIT, and IMPLICATION, have been achieved by controlling the chemical inputs. (C) 2015 Elsevier B.V. All rights reserved.

分类号: O657.3

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