Chinese Journal of Applied Chemistry ›› 2020, Vol. 37 ›› Issue (12): 1432-1440.DOI: 10.11944/j.issn.1000-0518.2020.12.200168

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Highly Selective Recognition of a Long-Chain Alkoxyphenylhydrozone Derivative for Floride Ion

CAO Chenga,b, LIU Zhiyuc, JI Xiangdonga*, SHAO Xiaoxiaoa, XIAO Honga   

  1. aKey Laboratory of Hexi Corridor Resources Utilization of Gansu, College of Chemistry and Chemical Engineering;bKaiyuan Bio-Tech Development Center;cZhangye People's Hospital Affiliated to Hexi University,Hexi University,Zhangye,Gansu 734000,China
  • Received:2020-06-03 Revised:2020-07-07 Accepted:2020-08-06 Published:2020-12-01 Online:2020-12-07
  • Contact: JI Xiangdong, associate professor; Tel/Fax:0936-8282066; E-mail:jxdsn@163.com; Research interests:synthesis and application of ion recognition receptor
  • Supported by:
    National Natural Science Foundation of China(No.21761011), the Gansu Provincial Science and Technology Program Funded Project(No.18JR3RG205) and the Scientific Research Foundation of the Higher Education Institutions of Gansu Province(No.2018A-088)

Abstract: A new long-chain alkoxyphenylhydrozone derivative, 1-(2,4-dinitrophenyl)-2-(4-(tetradecyloxy) benzylidene) hydrazine, was designed and synthesized. The ultraviolet-visible (UV-Vis) spectra and naked-eye recognition property of the receptor R for nine kinds of anions (F-, Cl-, Br-, I-, HSO-4, NO-3, ClO-4, H2PO-4, Ac-) were studied. The results indicate that the receptor R shows high UV-Vis and naked-eye recognition property towards F-, Ac- and H2PO-4 in dimethylsulfoxide (DMSO) solution. Single colorimetric recognition of F- is found by UV-Vis analysis and naked-eye recognition in H2O/DMSO (1/9) solution, and the LOD (limit of detection) of receptor R for F- is 7.02×10-7 mol/L. The naked recognition paper of receptor R is prepared, and the Job's plot indicates the formation of complex between receptor R and F- is in 1∶1 stoichiometric ratios. The recognition mechanism of receptor R is the “hydrogen-bond” recognition.

Key words: Schiff base receptor, ion detection, chemosensor for floride ion, naked-eye detection, anions

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