摘要
以席夫碱官能团为连接臂、香豆素和罗丹明为发色基团,合成了一种荧光探针L,用1HNMR、13CNMR及HRMS对探针的结构进行了表征,并对其识别Ca2+、Cd2+和Al3+的机理进行了考察。结果表明:L在乙醇体系中对Ca2+、Cd2+和Al3+可选择性识别,并且对于其他金属离子具有一定的抗干扰能力。L及配合物[L+金属离子]在pH=7~12内有明显的荧光增强。HRMS和Job's曲线结果表明:L可分别与Ca2+、Cd2+和Al3+形成物质的量比为1∶1、2∶1和2∶1的配合物。
A fluorescence probe L was synthesized by using Schiff base functional group as linker,coumarin and rhodamine as chromogenic groups. The probe was characterized by means of1 HNMR,13CNMR and HRMS. In addition,the mechanism of probe L for recognition of Ca^（2＋）,Cd^（2＋）and Al^（3＋） were investigated. The results showed that probe L displayed highly selective response to Ca^（2＋）,Cd^（2＋）and Al3 ＋in ethanol system and exhibited certain anti-interference ability in the presence of other metal ions. Probe L and its complexes containing metal ions had significant fluorescence enhancement effect at pH 7 ~ 12 Meanwhile,the complexes of L with Ca^（2＋）,Cd^（2＋）and Al^（3＋） in corresponding molar ratios of1∶1,2∶1 and 2∶1 were formed,which was corroborated by HRMS and Job＇s plot analyses.
作者
杜微
杨秋云
张德拉
贾春满
钱亚骜
陈清
王怡乐
张岐
DU Wei YANG Qiu-yun Zhang De-la JIA Chun-man QIAN Ya-ao CHEN Qing WANG Yi-le ZHANG Qi(Hainan Provincial Key Lab of Fine Chemistry, Key Study Center of the National Ministry of Education for Tropical Resources Utilization,Hainan University,Haikou 570228 ,Hainan, Chin)
出处
《精细化工》
EI
CAS
CSCD
北大核心
2017年第10期1119-1125,共7页
Fine Chemicals
基金
国家自然科学基金项目(21562018
21261008
21166008)
海南省自然科学基金(20162019)~~
