Chiral fluorescent sensor Tb^(3+)@Cd‑CP based on camphoric acid for the enantioselective recognition of R‑and S‑propylene glycol  

基于樟脑酸配体的Tb3+@Cd-CP手性荧光传感器对R-和S-丙二醇的对映选择性识别

作　　者：LI Junying CHEN Xinyan DIAO Xihui Yaseen Muhammad CHEN Chao WANG Hao QI Chuansong LI Wei 李俊颖;陈新彦;刁习慧;Yaseen Muhammad;陈超;王浩;戚传松;李巍(北京石油化工学院新材料与化工学院,特种弹性体复合材料北京市重点实验室,北京102617;Institute of Chemical Sciences,University of Peshawar,Peshawar 25120,Pakistan)

机构地区：[1]Beijing Key Lab of Special Elastomer Composite Materials,College of New Materials and Chemical Engineering,Beijing Institute of Petrochemical Technology,Beijing 102617,China [2]Institute of Chemical Sciences,University of Peshawar,Peshawar 25120,Pakistan

出　　处：《无机化学学报》2024年第12期2497-2504,共8页Chinese Journal of Inorganic Chemistry

基　　金：北京市自然科学基金(No.2212006)资助。

摘　　要：Herein,a layered chiral coordination polymer,[Cd2(D‑cam)_(2)(2,2′‑bipy)_(2)]_(n)(Cd‑CP),was synthesized using a solvothermal method with camphoric acid(D‑H_(2)cam),2,2′‑bipyridine(2,2′‑bipy)and Cd^(2+),and Tb^(3+)@Cd‑CP was in‑situ synthesized introducing Tb^(3+)ions.The fluorescence experiments revealed that compared to Cd‑CP,Tb^(3+)@Cd‑CP exhibited ultra‑high fluorescence performance.The luminescence sensing performance demonstrated that Tb^(3+)@Cd‑CP could distinguish R/S‑propylene glycol(R/S‑PG)by fluorescence responses,with fluorescence quenching constant of 5.3×10^(3)and 2.0×10^(3)L·mol^(-1)respectively and the enantioselectivity factor(α)of 2.65.Moreover,Tb^(3+)@Cd‑CP demonstrated limits of detection of 9.3 and 19.0μmol·L^(-1)for R‑PG and S‑PG,respectively,and showed good reproducibility.采用溶剂热法,以D-樟脑酸(D-H_(2)cam)、2,2'-联吡啶(2,2'-bipy)和Cd^(2+)合成了层状纯手性配位聚合物[Cd_(2)(D-cam)_(2)(2,2'-bipy)_(2)]_(n)(Cd-CP),再用原位合成法引入Tb^(3+)离子,制备出Tb^(3+)@Cd-CP。荧光数据表明,Cd-CP本身的荧光性能较差,而Tb^(3+)@Cd-CP展示出良好的荧光性能。同时,Tb^(3+)@Cd-CP可以通过荧光响应来区分R-和S-丙二醇(R/S-PG),荧光猝灭常数分别为5.3×10^(3)和2.0×10^(3)L·mol^(-1),对映选择性因子α为2.65。Tb^(3+)@Cd-CP对R-PG和S-PG的检测限分别为9.3和19.0μmol·L^(-1),并且表现出良好的可重复性。

关 键 词：camphoric acid coordination polymer ENANTIOSELECTIVITY propylene glycol 

分 类 号：O614.242[理学—无机化学] O614.341[理学—化学]