Upadhyay Yachana, Bothra Shilpa, Kumar Rajender, Choi Heung-Jin, Sahoo Suban K
Department of Applied Chemistry, S.V. National Institute of Technology (SVNIT), Surat 395007, India.
Department of Applied Chemistry, Kyungpook National University, Daegu, 41566, South Korea.
Spectrochim Acta A Mol Biomol Spectrosc. 2017 Jun 5;180:44-50. doi: 10.1016/j.saa.2017.02.057. Epub 2017 Feb 28.
This communication reports the application of rhodamine 6G hydrazide (L) for the selective colorimetric and turn-on fluorescent sensing of hydrogen sulphate ions from aqueous medium. The ring opening of the colourless spirocyclic form of L was selectively triggered in the presence of HSO among the other tested anions (F, Cl, Br, I, AcO, HPO, NO, ClO, CN, HO, AsO and SO), which gives rise to a pink colour and strong fluorescence in the visible region. Sensor L showed a detection limit down to micromolar range without any interference from the other tested competitive anions. Sensor L was applied for the construction of two inputs (HO and HSO) INHIBIT type molecular logic gate and naked-eye detection of HSO using test paper strips.
本通讯报道了罗丹明6G酰肼（L）在从水介质中选择性比色和开启荧光传感硫酸氢根离子方面的应用。在其他测试阴离子（F⁻、Cl⁻、Br⁻、I⁻、AcO⁻、HPO₄²⁻、NO₃⁻、ClO₄⁻、CN⁻、OH⁻、AsO₄³⁻和SO₄²⁻）存在的情况下，L的无色螺环形式会选择性地发生开环反应，在可见光区域产生粉红色和强荧光。传感器L的检测限低至微摩尔范围，不受其他测试竞争性阴离子的任何干扰。传感器L被用于构建双输入（OH⁻和HSO₄⁻）抑制型分子逻辑门，并使用试纸条对HSO₄⁻进行肉眼检测。
