Summary
Complexes with 1-methyl-3-(mercaptomethyl)piperidine (LH) and 1-methyl-2-(2-mercaptoethyl)piperidine (L′H) Ligands in their thiolato (R), andN-protonated (HR) orN-methylated (MeR) zwitterionic form, of stoichiometry MR2 (M=Ni, R=L or L′; M=Cd, R=L), MR (M=Cu or Ag, R=L and L′), [Ni(MeR)2]I2 · nH2O (R=L, n=1; R=L′, n=2), [Ni(HR)2]X2 (R=L or L′, X=ClO4; R=L′, X=Br), and [Ag(HR)] ClO4 (R=L′) have been prepared and characterized. According to i.r. and electronic spectra, and magnetic measurements the nickel complexes exhibit polymeric frameworks built up from mercapto-bridged metal atoms in square-planar environments. Complexes with copper, silver, and cadmium exhibit similar polymeric arrangements through bridging sulphur atoms but with a different geometry at the metal centers, the first two being mainly linear, as anticipated, and the latter tetrahedral. In no case does coordinationvia nitrogen take place and therefore these ligands behave simply as mercaptides.
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Barrera, H., Sola, J. & Viñas, J.M. Transition metal complexes of γ-mercaptoalkylpiperidines. Transition Met Chem 10, 233–235 (1985). https://doi.org/10.1007/BF00692635
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DOI: https://doi.org/10.1007/BF00692635