| Budget Amount *help |
¥16,770,000 (Direct Cost: ¥12,900,000、Indirect Cost: ¥3,870,000)
Fiscal Year 2016: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2015: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2014: ¥9,230,000 (Direct Cost: ¥7,100,000、Indirect Cost: ¥2,130,000)
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| Outline of Final Research Achievements |
It has been documented that pyridine-based PNP-pincer ligands coordinated with transition metals undergo deprotonation at the benzylic position. The resulting ligands having a dearomatized pyridine unit act as a strong base, to cause metal-ligand cooperative activation of chemical bonds in a heterolytic manner. In this study, we attempted to improve the reactivity by introducing a phosphaalkene unit possessing strong π-accepting properties toward transition metals into the ligand framework. We succeeded in the synthesis of PNP-pincer type phosphaalkene complexes, which exhibit extremely high reactivity toward N-H bond cleavage of ammonia and catalytic hydrosilylation of carbon dioxide.
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