A Water-stable Tetranuclear Cd(Ⅱ)Bicyclic Complex Used for the Picric Acid Detection  

作　　者：WANG Ming WANG Xiao-Mei CHEN Ming-Yu LIU Cheng DING Ge ZHOU Xin-Hui 王铭;王晓梅;陈明煜;刘成;丁舸;周馨慧(Key Laboratory for Organic Electronics and Information Displays&Jiangsu Key Laboratory for Biosensors,Institute of Advanced Materials(IAM),Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM),Nanjing University of Posts&Telecommunications,Nanjing 210023,China)

机构地区：[1]Key Laboratory for Organic Electronics and Information Displays&Jiangsu Key Laboratory for Biosensors,Institute of Advanced Materials(IAM),Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM),Nanjing University of Posts&Telecommunications,Nanjing 210023,China

出　　处：《Chinese Journal of Structural Chemistry》2021年第11期1461-1468,1407,共9页结构化学（英文）

基　　金：supported by the National Natural Science Foundation of China(21973047);Jiangsu Province Double Innovation Talent Program(090300014001)。

摘　　要：By solvothermal reaction of Cd(II)with organic ligand N,N’-bis(3,5-dicarboxylphenyl)-thiophene-2,5-dicarboxamide(H_(4)L),a water-stable complex[Cd_(4)(H_(2)L)_(4)(H_(2)O)_(10)]·2CH_(3)OH·8H_(2)O·4DMF(1,C_(102)H_(120)Cd_(4)N_(12)O_(64)S_(4))has been successfully synthetized(DMF=N,N-dimethylformamide).1 crystallizes in the triclinic space group of P1 with a=11.815(7),b=16.209(9),c=16.742(9)Å,α=82.224(13)°,β=76.741(13)°,γ=70.313(12)°,V=2932(3)Å^(3),M_(r)=3115.93,Z=1,F(000)=1584,D_(c)=1.765 Mg/cm^(3),μ=0.901 mm^(-1),GOOF=1.101,the final R=0.0391 and wR=0.1297 for 9007 observed reflections(I>2σ(I)).1 is a tetranuclear Cd(II)bicyclic complex with strong ligand-based blue emission and can stably exist in aqueous solutions over the pH range of 2~11.1exhibits high sensitivity,selectivity and anti-interference capability for picric acid(PA)detection in aqueous solution by luminescent quenching.The value of quenching constant(K_(sv))is 3.2×10^(4)M^(-1) within the PAconcentration range of 0~40μM and the detection limit is 6.89×10^(-7) M.Lastly,we went into depth on possible mechanism of the luminescent quenching.

关 键 词：SENSORS COMPLEX picric acid FLUORESCENCE 

分 类 号：X832[环境科学与工程—环境工程] O641.4[理学—物理化学] O657.3[理学—化学]