| Budget Amount *help |
¥84,890,000 (Direct Cost: ¥65,300,000、Indirect Cost: ¥19,590,000)
Fiscal Year 2016: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
Fiscal Year 2015: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
Fiscal Year 2014: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000)
Fiscal Year 2013: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
Fiscal Year 2012: ¥50,960,000 (Direct Cost: ¥39,200,000、Indirect Cost: ¥11,760,000)
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| Outline of Final Research Achievements |
Phosphaalkenes with a P=C double bond possesses an extremely low-lying π* orbital, thereby serving as strong π-acceptors towards transition metals. We have found that this particular ligand property is useful in organometallic chemistry, leading to the following results. (1) PNP-pincer type phosphaalkene ligands effectively stabilize coordinatively unsaturated complexes of iron, nickel, and copper in low oxidation states. (2) A bis(phosphaethenyl)pyridine ligand forms very unusual platinum(0) complexes with a square planar configuration. (3) Noninnocent PNP-pincer type phosphaalkene complexes of iridium(I) rapidly cleave the N-H of ammonia and the C-H bond of acetonitrile at room temperature via metal-ligand cooperation. (4) The same iridium(I) complexes effectively catalyze hydrosilylation of carbon dioxide at room temperature under normal pressure.
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