Three anthracene-based bis-imidazolium salts: Synthesis, structure and recognition for 2,4-dinitrophenylhydrazine
作者:Qingxiang Liu、Shaocong Yu、Zhixiang Zhao、Xiantao Zhang、Rui Liu
DOI:10.1016/j.dyepig.2019.107983
日期:2020.2
acetamido]anthracene 2× (1: R = nBu, X = Cl−; 2: R = nBu, X = PF6−; 3: R = Et, X = PF6−) were prepared. The structure of 1 was demonstrated by X-ray analysis. The selective recognition of 2 (or 3) for some aromatic compounds (toluene, chlorobenzene, phenylamine, phenol, anisole, benzaldehyde, acetophenone, nitrobenzene, m-dinitrobenzene, 2,4-dinitrotoluene, 2,4-dinitrophenylhydrazine (DNP), trinitrophenol, o-nitrophenol
三个基于蒽-双-咪唑鎓盐1,8-双[2' - (ñ -R-imidazoliumyl)乙酰氨基]蒽2×(1:R = Ñ卜,X =氯- ; 2:R = Ñ卜,X = PF 6 - ; 3:R =的Et,X = PF 6 - )中制备。通过X射线分析证实了1的结构。的选择性识别2(或3)的一些芳族化合物(甲苯,氯苯,苯胺,苯酚,苯甲醚,苯甲醛,苯乙酮,硝基苯,米在25°C下通过荧光,紫外,1 H NMR,HRMS和IR光谱研究了-二硝基苯,2,4-二硝基甲苯,2,4-二硝基苯肼(DNP),三硝基苯酚,邻-硝基苯酚,对硝基甲苯)。化合物2(或3)对DNP表现出良好的选择性识别能力,并且可以有效地将DNP与其他芳香族化合物区分开。缔合常数和检出限2和3相似,显示侧链的大小(n Bu为2,Et为3)对DNP的识别没有显着影响。