A colorimetric and absorption ratiometric anion sensor based on indole & hydrazide binding units
作者:Linbo Zou、Boren Yan、Dingwu Pan、Zan Tan、Xiaoping Bao
DOI:10.1016/j.saa.2015.03.109
日期:2015.9
A colorimetric and absorption ratiometric anion sensor (L) based on indole and hydrazide binding units was designed and synthesized, and its recognition & sensing properties towards different anions were studied by naked-eye observations, UV–vis and 1H NMR titration spectra. Sensor L could selectively recognize biologically important F−, AcO− and H2PO4− in DMSO over other anions, along with a significant
设计并合成了基于吲哚和酰肼键合单元的比色和吸收比阴离子传感器(L),并通过肉眼观察,UV-vis和1 H NMR滴定光谱研究了其对不同阴离子的识别和传感特性。传感器大号能选择性地识别生物学上重要的˚F -,ACO -和H 2 PO 4 -在DMSO中比其它的阴离子,随着它的颜色和吸收光谱的显著变化,从对应1的形成而产生:2(大号/ F -)和1:1(大号/ ACO -和大号/ H 2 PO 4 - )的复合物。的1个1 H NMR滴定实验证明,传感器大号NH片段的有经验的去质子化和产生[HF 2 ] -物种,而形成于ACO的存在下稳定的氢键络合物-和H 2 PO 4 - 。