| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Outline of Final Research Achievements |
Previously, we have successfully prepared two chalcogen-stabilized carbones. In this work, we have investigated preparation of new types of carbones and their four-electron donor abilities. These results obtained in this work are as follows. (1) We have succeeded in new types of carbones, S(III)→C(0)←S(III) and S(IV)→C(0)←P(III). (2) the electronic structure and proton affinity of carbones were predicted by ab intio calculation. (3) The carbone character demonstrated by forming the corresponding diaurated complexes and this constitutes the first experimental proof of carbones behaving as four-electron donors. (4) The borenium cation was prepared by the use of carbones as monodendate ligand acting as stabilizing σ and π donors. (5) The proton-curated complex of S(III)-stabilized carbon catalyzed the hydroarylation of mesitylene and ethyl propiolate.
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