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Synthesis and extractive properties of bisthiophosphorylimines

  • Rui-ren Tang (唐瑞仁)Email author
  • Xiao-ming Shi (石晓明)
  • Qi-xiu Zhang (张启修)
  • Zi-long Tang (唐子龙)
Article
  • 33 Downloads

Abstract

Novel transition metal complexes of bis(diarylsubstitutedthiophosphoryl)imines ligand derived from O,O-di(p-methoxylphenyl)thiophosphoryl chloride and O,O-di-(p-methoxylphenyl)thiophosphoryl amine with Cu(II), Co(II), Ni(II), Fe(II) and Mn(II) were synthesized. The formation mechanism of complexes and their stereochemistry structures were investigated according to elemental analysis, infrared spectra and 31P-nuclear magnetic resonance spectra. The extractions of the ligand for different divalent metal ions, such as Zn(II), Cd(II), Cu(II), Ni(II), Fe(II), Sn(II), Mn(II), Pd(II), Hg(II) and Fe(III), were investigated in sulphate solution, respectively. The results show the metal atom is coordinated by 4 sulfur atoms in a square-planar fashion, and the titled compound has not only powerful ability to coordinate with cadmium from aqueous solution with a high extractive rate about 61.20% and a relatively weak complexation for other divalent metals with the extractive rate from 2.46% to 36.66%, but also a good selectivity to Fe(III).

Key words

bis(thiophosphoryl)imines transition metal complexes synthesis extraction 

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Copyright information

© Central South University Press and Springer-Verlag GmbH 2008

Authors and Affiliations

  • Rui-ren Tang (唐瑞仁)
    • 1
    Email author
  • Xiao-ming Shi (石晓明)
    • 1
  • Qi-xiu Zhang (张启修)
    • 2
  • Zi-long Tang (唐子龙)
    • 3
  1. 1.School of Chemistry and Chemical EngineeringCentral South UniversityChangshaChina
  2. 2.School of Metallurgical Science and EngineeringCentral South UniversityChangshaChina
  3. 3.School of Chemistry and Chemical EngineeringHunan University of Science and TechnologyXiangtanChina

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