基于二溴化N,N′-二(2-苄基萘)偶氮吡啶盐对多种阴离子的识别研究  

A Study of Recognition to Multiple Anions Based on Brominated N,N′-di (2-naphthalene) Azopyridines Salts

作　　者：钱浩然[1] 王斌[2] QIAN Haoran;WANG Bin(College of Chemistry and Chemical Engineering,China West Normal University,Nanchong Sichuan 637009,China;Key Laboratory of Chemical Synthesis and Pollution Control ofSichuan Province,China West Normal University,Nanchong Sichuan 637009,China)

机构地区：[1]西华师范大学化学化工学院,四川南充637009 [2]西华师范大学四川省化学应用与污染控制技术重点实验室,四川南充637009

出　　处：《西华师范大学学报（自然科学版）》2019年第1期65-68,共4页Journal of China West Normal University(Natural Sciences)

基　　金：西华师范大学英才基金(17YC033);西华师大科研配套项目(12ZA175)

摘　　要：基于阴离子识别研究的理念,我们合理地设计了一种新型的阴离子受体——β-NAAB。通过紫外-可见吸收光谱观察不同阴离子最大吸收峰的变化情况。结果发现:由于离子半径的增大导致体系的自组装堆积,以及分子间的交联产生局部屏蔽效应导致部分阴离子的紫外-可见吸收光谱发生了蓝移现象。同时,发现以混合溶剂(20%DMSO和80%H_2O)为良溶剂的所有阴离子溶液中,只有PF^-_6的溶液有荧光发射峰,这说明β-NAAB在混合溶剂(20%DMSO和80%H_2O)中对PF ^-_6有特殊的识别能力。Based on the concept of anion recognition research,we had designed a new type of anionic receptor-β-NAAB.The changes of maximum absorption peaks of different anions were observed by UV-visible absorption spectra.Due to the increase of ion radius,the self-assembly accumulation of the system and the partial shielding effect of intermolecular cross-linking resulted in the UV-vis absorption spectra of partial anions were occurred blue shift.At the same time,we found that of all anionic solutions with mixed solvent(20%DMSO and 80%H 2O)with no fluorescence intensity,only the solution of PF-6 had fluorescence emission peaks,and this indicates thatβ-NAAB has special ability to recognize PF-6 in mixed solvents(20%DMSO and 80%H 2O).

关 键 词：偶氮吡啶盐 阴离子识别 阴离子受体 静电作用 离子型化合物 

分 类 号：O656.9[理学—分析化学]