| Budget Amount *help |
¥107,900,000 (Direct Cost: ¥83,000,000、Indirect Cost: ¥24,900,000)
Fiscal Year 2014: ¥12,610,000 (Direct Cost: ¥9,700,000、Indirect Cost: ¥2,910,000)
Fiscal Year 2013: ¥13,260,000 (Direct Cost: ¥10,200,000、Indirect Cost: ¥3,060,000)
Fiscal Year 2012: ¥14,040,000 (Direct Cost: ¥10,800,000、Indirect Cost: ¥3,240,000)
Fiscal Year 2011: ¥13,780,000 (Direct Cost: ¥10,600,000、Indirect Cost: ¥3,180,000)
Fiscal Year 2010: ¥54,210,000 (Direct Cost: ¥41,700,000、Indirect Cost: ¥12,510,000)
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| Outline of Final Research Achievements |
In this research project, we designed and synthesized precursors for low-coordination, low-valent complexes of early transition metals by utilizing sterically encumbered phenoxide ligands. For example, reduction of a zirconium dichloride complex bearing two bulky phenoxide ligands in toluene led to formation of a toluene-bridged inverted-sandwich dizirconium complex according to X-ray diffraction and NMR spectroscopic studies. This dinuclear complex was found to behave as a source of a low-coordination zirconium and a multi-electron reductant along with toluene extrusion. The inverted-sandwich complex was treated with alkyl azide to generate a mononuclear imide complex, where organic azide underwent two-electron reduction.
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