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Search: ((WFRF:(Yin V))) > (2003-2004)

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  • Yin, Y-G, et al. (author)
  • Polymeric structure and solid NMR spectra of cadmuim (II) dialkyldithiophosphates (alkyl = propyl, butyl, isopropyl and isobutyl)
  • 2003
  • In: Chinese journal of chemistry. - : Wiley. - 1001-604X .- 1614-7065. ; 21:3, s. 291-295
  • Journal article (peer-reviewed)abstract
    • By dropwise adding thio ligands to concentrated aqueous solutions of Cd(ClO4)26H2O, polymeric complexes, Cd(II) O,O′-dipropyl-dithiophosphate (1), O,O′-dibutyl- dithiophosphate (2), O,O′-diisopropyi-dithiophosphate (3) and O,O′-diisobutyl-dithiophosphate (4) were obtained. The structure of 4 was determined by X-ray diffraction analysis, showing that the metal ion sits in distorted tetrahedral sulphur coordination sphere and that the eight-membered bimetallic rings take the twist chair and boat conformations, alternately. Based on facts that the S(1)-Cd bond length [0.25099(12) nm] is shorter than the other S-Cd bond length [0.25399(12)-0.25701(18) nm] and that the S(1)-involving angles [113.45(4)°-118.43(5)°] are systematically larger than the normal angles of a tetrahedron, the ligands are hypothesized to be erratically functionalized to Cd(II). To certify the steric nonequivalence of ligands, the compounds were investigated by solid 13C, 31P and 113Cd NMR spectroscopy.
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