Synthesis, Crystal Structure, and Some Spectrochemical Properties of Optically Active <i>S</i>-Bridged Trinuclear Complex <i>ΔΔ</i>-[Ni{Co(aet)2(<i>R</i>-pn)}2]4+ (aet = 2-Aminoethanethiolate, <i>R</i>–pn = (<i>R</i>)–1,2-Propanediamine)

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  • Yasunori Yamada
    Department of Chemistry, University of Tsukuba Tsukuba, Ibaraki 305-8571
  • Yoko Maeda
    Department of Chemistry, University of Tsukuba Tsukuba, Ibaraki 305-8571
  • Yoshitaro Miyashita
    Department of Chemistry, University of Tsukuba Tsukuba, Ibaraki 305-8571
  • Kiyoshi Fujisawa
    Department of Chemistry, University of Tsukuba Tsukuba, Ibaraki 305-8571
  • Takumi Konno
    Department of Chemistry, Faculty of Engineering, Gunma University Kiryu, Gunma 376-8516
  • Ken-ich Okamoto
    Department of Chemistry, University of Tsukuba Tsukuba, Ibaraki 305-8571

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<jats:title>Abstract</jats:title> <jats:p>The reaction of cis-[CoCl2(R-pn)2]+ (R–pn = (R)–1,2-propanediamine) with [Ni(aet)2] (aet = 2–aminoethanethiolate) in water stereoselectively gave an S-bridged trinuclear complex, [Ni{Co(aet)2(R-pn)}2]4+, accompanied by the ligand-transfer of aet from Ni2+ to Co3+. The ΔΔ isomer of the trinuclear complex was selectively formed. The spectrochemical properties of theΔΔ isomer are also discussed in relation to the stereochemical behavior.</jats:p>

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