| Budget Amount *help |
¥19,630,000 (Direct Cost: ¥15,100,000、Indirect Cost: ¥4,530,000)
Fiscal Year 2010: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2009: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2008: ¥12,220,000 (Direct Cost: ¥9,400,000、Indirect Cost: ¥2,820,000)
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| Research Abstract |
In this project, we have developed synthetic methods for discrete cyclic assemblies where redox-active transition-metal components are linked together with a series of bidentate spacers in a well-defined number and geometry. These high-nuclearity clusters are formed from a soluble triruthenium cluster^1 and organic linkers, such as pyrazine. The pyrazine-bridged systems show multiple-step redox processes arising from strong electronic communications between the redox components, where the extent of the communication is varied, depending on the geometry and nuclearity of the resulting structures, π-level of the organic spacers, and the nature of electrolyte media. The synthesis of wire-shaped and box-shaped clusters has been also achieved. Synthesis and molecular structures of a series of six-coordinate Ru(II) complexes of porphycene have been investigated. Kinetic studies on the axial pyridine exchange reactions of these compounds have been achieved.
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