【摘 要】
：
By solvothermal reaction of Cd(Ⅱ)with organic ligand N,N\'-bis(3,5-dicarboxylphenyl)-thiophene-2,5-dicarboxamide(H4L),a water-stable complex[Cd4(H2L)4(H2O)10]·2CH3OH·8H2O·4DMF(1,C102H120Cd4N12O64S4)has been successfully synthetized(DMF=N,N-dimethylforma
【机 构】
：
Key Laboratory for Organic Electronics and Information Displays&Jiangsu Key Laboratory for Biosensor
论文部分内容阅读
By solvothermal reaction of Cd(Ⅱ)with organic ligand N,N\'-bis(3,5-dicarboxylphenyl)-thiophene-2,5-dicarboxamide(H4L),a water-stable complex[Cd4(H2L)4(H2O)10]·2CH3OH·8H2O·4DMF(1,C102H120Cd4N12O64S4)has been successfully synthetized(DMF=N,N-dimethylformamide).1 crystallizes in the triclinic space group of P(1)-with a=11.815(7),b=16.209(9),c=16.742(9)?,a=82.224(13)°,β=76.741(13)°,y=70.313(12)°,V=2932(3)?3,Mr=3115.93,Z=1,F(000)=1584,Dc=1.765 Mg/cm3,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 2～11.1 exhibits high sensitivity,selectivity and anti-interference capability for picric acid(PA)detection in aqueous solution by luminescent quenching.The value of quenching constant(Ksv)is 3.2×104 M-1 within the PA concentration range of 0～40 μM and the detection limit is 6.89×10-7M.Lastly,we went into depth on possible mechanism of the luminescent quenching.
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