| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Outline of Final Research Achievements |
In this study, we synthesized targeted complexes of various thiolato ligands attached to the cobalt(II) center using hydrotris(pyrazolyl)borate ligands and investigated their sulfur oxidation reactions. The target complexes were synthesized by the reaction of a cobalt (II) nitrato complex with the corresponding metal thiolate. The obtained complexes were identified by various spectral measurements and X-ray structural analyses. When oxygen reacts with an acetonitrile solution of an o-aminothiophenolato cobalt(II) complex, its sulfur atom is oxidized and a sulfanato-bridged dinuclear cobalt complex is formed. In p-substituted thiophenolato cobalt(II) complexes, sulfur oxidation was also found to proceed upon reaction with oxygen. These reactions are speculated to occur after the activation of the dioxygen on cobalt(II), followed by sulfur atom oxidation.
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