长链烷氧基苯腙衍生物对F^(-)的选择性单一识别  

Selective single recognition of F^(-) by a long-chain alkoxyphenylhydrazone derivative

作　　者：籍向东 李守博 曹成 茹涛 杨瑞芳 岳国仁 JI Xiangdong;LI Shoubo;CAO Cheng;RU Tao;YANG Ruifang;YUE Guoren(Key Laboratory of Hexi Corridor Resources Utilization of Gansu,College of Chemistry and Chemical Engineering,Hexi University,Zhangye 734000,Gansu,China;Kaiyuan Bio-Tech Development Center,Zhangye 734000,Gansu,China)

机构地区：[1]河西学院化学化工学院,甘肃省河西走廊特色资源利用重点实验室,甘肃张掖734000 [2]甘肃省凯源生物技术开发中心,甘肃张掖734000

出　　处：《精细化工》2021年第2期323-328,418,共7页Fine Chemicals

基　　金：国家自然科学基金(21761011);甘肃省科技计划资助项目(18JR3RG205);甘肃省基础研究创新群体项目(17JR5RA306);大学生创新创业训练计划项目(201810740001)。

摘　　要：合成了一种长链烷氧基苯腙衍生物受体R,其结构采用^(1)HNMR、^(13)CNMR、FTIR和HRMS进行了表征。结果表明,受体R在纯二甲基亚砜(DMSO)中能够选择性识别F^(-)、Ac^(-)和H2PO4^(-),在5%H_(2)O+95%DMSO中(体积分数)可高选择性单一识别F^(-)。根据Benesi-Hidebrand方程及Job曲线分析可知,受体R与阴离子形成的络合常数均在3.07×10^(3) L/mol以上,且与F^(-)形成物质的量比为1∶1型氢键络合物。最后通过^(1)HNMR滴定实验及理论计算阐述了阴离子识别过程机理的可行性。A long-chain derivative receptor R was synthesized and characterized by 1 HNMR,13CNMR,FTIR and HRMS.The results showed that receptor R could selectively recognize F^(-),Ac^(-)and H_(2)PO_(4)^(-)in pure dimethyl sulfoxide(DMSO).Moreover,receptor R showed selectively single recognition of F^(-)in 5%H_(2)O+95%DMSO(volume fraction)solution.The Benesi-Hidebrand equation and Job curve showed that the complexing constants of receptor R with anions were above 3.07×10^(3) L/mol.Receptor R could form a molar ratio of 1∶1 hydrogen bond complex with F^(-).Finally,the feasibility of the mechanism of anion recognition process was explained through ^(1)HNMR titration experiment and theoretical calculation.

关 键 词：苯腙衍生物 阴离子识别 F^(-)化学传感器 功能材料 

分 类 号：O657.3[理学—分析化学] X830.2[理学—化学]