title: A dithienosilole-based fluorescent chemosensor for multiple logic operations at the molecular level.
abstract: 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 Zn(2+). Meanwhile, the emission of 1 is weakened upon exposure to Ag(+) and Fe(2+) and completely quenched by Ni(2+), Co(2+), and Cu(2+). Based on the observed results, several logic gates, such as XNOR, INHIBIT, and IMPLICATION, have been achieved by controlling the chemical inputs.
authors.affiliation: College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, PR China.
authors.forename: Chen
authors.initials: C
authors.lastname: Zhang
authors.affiliation: Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China.
authors.forename: Caixia
authors.initials: C
authors.lastname: Sun
authors.affiliation: College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, PR China.
authors.forename: Yahong
authors.initials: Y
authors.lastname: Lu
authors.affiliation: College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, PR China.
authors.forename: Junxing
authors.initials: J
authors.lastname: Wang
authors.affiliation: College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, PR China.
authors.forename: Xingxing
authors.initials: X
authors.lastname: He
authors.affiliation: College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, PR China.
authors.forename: Junting
authors.initials: J
authors.lastname: Lu
authors.affiliation: College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, PR China. Electronic address: yinsc@hznu.edu.cn.
authors.forename: Shouchun
authors.initials: S
authors.lastname: Yin
authors.affiliation: College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, PR China. Electronic address: hyqiu@hznu.edu.cn.
authors.forename: Huayu
authors.initials: H
authors.lastname: Qiu
keywords: Dithienosilole; Fluorescent chemosensor; Logic gates; Spectroscopic properties; Terpyridine