Lin Xin, Zheng Yuhui, Jiang Lasheng, Chen Haoliang, Wang Qianming
Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry & Environment, South China Normal University, Guangzhou, 510006, China.
School of Chemistry & Environment, South China Normal University, Guangzhou, 510006, China.
J Fluoresc. 2018 May;28(3):725-728. doi: 10.1007/s10895-018-2244-1. Epub 2018 Jun 5.
A novel macrocyclic host has been synthesized for the determination of Ni (II) ions in aqueous solution (HO-CHCN, v/v = 1:1). Its molecular structure has been verified by H-NMR, C NMR and mass spectrometry (ESI).This probe shows selectivity towards the presence of Ni (II) ion among various alkali, alkaline earth, and transition metal ions. The formation of a new fluorescence band at 311 nm has been detected due to possible complex formation with increasing Ni concentration in the range of 10-10 M. The detection limit is calculated to be 5.22 μM. To our knowledge, it will be the first case for bis(p-phenylene)-34-crown-10 based molecules to recognize Ni ions.
已合成一种新型大环主体用于测定水溶液（HO-CHCN，体积比v/v = 1:1）中的Ni（II）离子。其分子结构已通过H-NMR、C NMR和质谱（ESI）进行验证。该探针在各种碱金属、碱土金属和过渡金属离子中对Ni（II）离子的存在具有选择性。由于在10⁻¹⁰ M范围内随着Ni浓度增加可能形成配合物，已检测到在311 nm处形成新的荧光带。计算得出检测限为5.22 μM。据我们所知，这将是基于双（对亚苯基）-34-冠-10的分子识别Ni离子的首例情况。
