Two Thiourea-based Colorimetric Sensors for Anions: Structure and Binding Study |
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| Authors: | Lan-Hua Wei Yong-Bing He Jin-Long Wu Xiao-Jun Wu Ling-Zhi Meng Xi Yang |
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| Institution: | Department of Chemistry , Wuhan University , Wuhan Hubei, 430072, China |
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| Abstract: | Two colorimetric thiourea-based chemsensors with two relatively rigid arms, 2A and 2B, were synthesized. Their binding abilities with halide anions, AcO?, Formula: See Text] were studied by UV-Vis spectroscopy in DMSO. The two sensors showed a notable selective color response to F? anion from colorless to green-yellow in recognition. The structures of the two sensors and their binding behaviors are discussed. The association constants were calculated by nonlinear fittings of 1:1, 1:2 or 1:1 to 1:2. |
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| Keywords: | Colorimetric sensor Fluoride Anion recognition Thiourea Crystal structure |
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