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作为优良的氢键给予体,脲基(—NH—CO—NH—)是构筑阴离子识别受体的理想结构单元。而电化学方法因其方便快捷、灵敏度高等优点,近年来被广泛应用于阴离子的识别检测。本文对脲类受体的电化学阴离子识别进行了讨论,主要包括:(i)归纳整理了电化学阴离子识别的机理,包括识别位点与阴离子结合之后对氧化还原中心的5种扰动机理和溶液中电化学测试受体和阴离子相互作用时常见现象的分析及对应结合常数的计算;(ii)电活性脲类阴离子受体的研究进展,包括受体分子的设计、识别和机理;(iii)探讨了该领域的后续发展方向。
As an excellent hydrogen bond donor, urea groups (-NH-CO-NH-) are ideal building blocks for constructing anionic recognition acceptors. The electrochemical method because of its convenient and fast, high sensitivity, etc., in recent years has been widely used in the identification of anionic detection. In this paper, the electrochemical anion recognition of urea receptors is discussed, including: (i) Summarize the mechanism of electrochemical anion recognition, including five kinds of perturbation mechanism of the redox center and the solution Analysis of Common Phenomena in Electrochemical Testing of Receptor-Anion Interactions and Calculation of Corresponding Binding Constants; (ii) Advances in Electroactive Urea Anion Receptors, including Design, Recognition and Mechanism of Receptor Molecules; (iii) Explore the follow-up direction in this area.