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

文献类型： 外文期刊

作者： Zhang, Chen 1 ; Sun, Caixia 2 ; Lu, Yahong 1 ; Wang, Junxing 1 ; He, Xingxing 1 ; Lu, Junting 1 ; Yin, Shouchun 1 ; Qiu, 1 ;

作者机构： 1.Hangzhou Normal Univ, Coll Mat Chem & Chem Engn, Hangzhou 310036, Zhejiang, Peoples R China

2.Zhejiang Acad Agr Sci, Inst Qual & Stand Agroprod, Hangzhou 310021, Zhejiang, Peoples R China

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.

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