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

【Author】

WANG Ming;WANG Xiao-Mei;CHEN Ming-Yu;LIU Cheng;DING Ge;ZHOU Xin-Hui;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;

【Institution】

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;

【Abstract】

By solvothermal reaction of Cd(II) with organic ligand N,N'-bis(3,5-dicarboxylphenyl)-thiophene-2,5-dicarboxamide (H_4L),a water-stable complex[Cd_4(H_2L)_4(H_2O)_(10)]·2CH_3OH·8H_2O·4DMF (1,C_(102)H_(120)Cd_4N_(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)?,α=82.224(13)o,β=76.741(13)o,γ=70.313(12)o,V=2932(3)?~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 w R=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~(-1) _(sv)) is 3.2×10~4 Mwithin 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.

【Keywords】

sensors;;complex;;picric acid;;fluorescence

References

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Springer Journals Database

Total: 23 articles

  • [1] Guan-Yao Wang;Chan Song;De-Ming Kong, Two luminescent metal-organic frameworks for the sensing of nitroaromatic explosives and DNA strands, Journal of Materials Chemistry, A. Materials for energy and sustainability,
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  • [3] Wu Xiao Xia;Fu Hong Ru;Han Min Le;Zhou Zhan;Ma Lu Fang, Tetraphenylethylene Immobilized Metal–Organic Frameworks: Highly Sensitive Fluorescent Sensor for the Detection of Cr2O72– and Nitroaromatic Explosives, Crystal Growth & Design,
  • [4] Hu Yingli;;Ding Meili;;Liu Xiao-Qin;;Sun Lin-Bing;;Jiang Hai-Long, Rational synthesis of an exceptionally stable Zn(II) metal-organic framework for the highly selective and sensitive detection of picric acid., Chemical communications (Cambridge, England),

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