| Budget Amount *help |
¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
Fiscal Year 2020: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2018: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
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| Outline of Final Research Achievements |
The synthesis of silabenzenyl anion in which the anion carbon of the phenyl anion was replaced with silicon was investigated, and a cyclic polyanion was obtained, suggesting the formation of silabenzenyl anion. The silicon system was found to be extremely reactive unlike the previously reported germanium and tin systems.
In addition, we investigated the reactions of germabenzenyl anion with various electrophiles and found a unique reactivity of exchange of heavy elements in the aromatic ring with 1,2-dibromodimethalene. In the reactions with chalcogen donors, we succeeded in the synthesis of heavy analogues of phenoxide, and the concept of "charge repulsion" applied to the stabilization of "heavy phenyl anions" can stabilize other highly reactive species.
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