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Citation: YU Zhi-Gang, LI Jin-Zhou, LIU Shuang-Quan, ZHANG Xiao-Rui. Synthesis and Electrochemical Behaviour of Diphenylfuroylpyrazolone and Its Metal Complexes[J]. Chinese Journal of Applied Chemistry, ;2004, 21(12): 1300-1304. shu

Synthesis and Electrochemical Behaviour of Diphenylfuroylpyrazolone and Its Metal Complexes

1.
Department of Chemistry, Harbin Normal University, Harbin 150080

Corresponding author: LI Jin-Zhou,
Received Date: 15 January 2004
Available Online: 13 April 2004
Fund Project: 黑龙江省自然科学基金(B0107) (B0107)

A novel β-diketone compound, 1-(p-chloro-phenyl)-3-phenyl-4-(α-furoyl)pyrazolone-5(HL) and its Pb(Ⅱ), Cu(Ⅱ), Cr(Ⅲ) and Fe(Ⅲ) complexes were synthesized. The general formula of the complexes were [ML₂] and [ML₃], based on the elemental analysis, chemical methods and molar conduc-tance results. The coordinational structure, property and electrochemical behaviour of the complexes were studied by IR, UV-visible, ¹H NMR, ¹³C NMR,TG-DTA, and polarography. The results show that the ligand in a keto-form structure is changed into an enol form structure after coordination and bonded to the central ions by the O atom of the carbonyl group and enolic hydroxyl group; polarographic analysis illustrated that the complex of Pb(Ⅱ) has a coordination adsorption wave at -0.50 V and the electrode reaction is a reversible two-electron reduction process.
- diphenylfuroylpyrazolone,
- complex,
- synthesis,
- electrochemistry
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