Solution-Phase Structure Analaysis of Fe-Complex Catalysts based on XAFS
| Project/Area Number |
15K13694
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Synthetic chemistry
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| Research Institution | Kyoto University |
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Principal Investigator |
Takaya Hikaru 京都大学, 化学研究所, 准教授 (50304035)
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Keywords | 鉄触媒 / クロスカップリング / 有機鉄錯体 / X線吸収分光 / XAFS / XANES / EXAFS / 反応機構 / クロスカップリング反応 / 均一系触媒反応 / 溶液XAS / 放射光 / 鉄錯体 / SPring-8 / 溶液構造 / 常磁性金属錯体 |
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| Outline of Final Research Achievements |
Despite the significant progress in cross-coupling technology through the use of 3d-transition metal catalysts including iron catalysts, the large paramagnetic shifts and the related loss of spin-spin coupling information in NMR spectra often hampers solution-phase structural study of catalytic intermediates in the reaction mixture. Conventional ESR spectroscopy also suffers difficulty in measuring typical Fe+2 and Fe+3 species with S > 1/2, as they are often invisible. We therefore attempted to apply synchrotron X-ray absorption spectroscopy (XAFS) for the structural and mechanistic investigation of paramagnetic organometallic intermediates in homogeneous iron-catalyzed reactions.
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Report
(3 results)
Research Products
(76 results)
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[Journal Article] Investigation of Organoiron Catalysis in Kumada-Tamao-Corriu-Type Cross-Coupling Reaction Assisted by Solution-Phase X-ray Absorption Spectroscopy2015
Author(s)
Takaya, H.; Nakajima, S.; Nakagawa, N.; Isozaki, K.; Iwamoto, T.; Imayoshi, R.; Gower, N.; Adak, L.; Hatakeyama, T.; Honma, T.; Takagi, M.; Sunada, Y.; Nagashima, H.; Hashizume, D.; Takahashi, O.; Nakamura, M.
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Journal Title
Bull. Chem. Soc. Jpn.
Volume: 88
Issue: 3
Pages: 410-418
DOI
NAID
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Presentation] Mechanistic Study on Iron-Catalyzed Cross-Coupling Reaction Illuminated by Solution-Phase XAS Analysis2016
Author(s)
Hikaru Takaya, Sho Nakajima, Katsuhiro Isozaki, Tetsuo Honma, Masafumi Takagi, Yusuke Sunada, Hideo Nagashima, Daisuke Hashizume, Takahiro Iwamoto, Takuji Hatakeyama, Hikaru Takaya, Masaharu Nakamura
Organizer
Base Metal Catalysis Symposium
Place of Presentation
Princeton大学（USA)
Year and Date
2016-09-02
Related Report
Invited
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[Presentation] リグノセルロースバイオリファイナリーのためのリグニン・ペプチド間相互作用解析2016
Author(s)
山口亜佐子,末富高志,大城理志,徳永有希,西村裕志,永田崇,真嶋司,片平正人,磯﨑勝弘,高谷光,中村正治,渡辺隆司
Organizer
第61回リグニン討論会
Place of Presentation
京都大学生存圏研究所
Related Report
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[Presentation] 海洋性細菌に由来するリグニンβ-O-4還元開裂酵素GST4の解析2016
Author(s)
嶋根康弘,前田亜鈴悠,塩谷美夏,黒澤佳奈子,市川淳子,布浦拓郎,山置佑大,永田崇,片平正人,高谷光,吉田亮太,中村正治,渡辺隆司,大田ゆかり
Organizer
第61回リグニン討論会
Place of Presentation
京都大学生存圏研究所
Related Report
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[Presentation] Synthesis, structure and reactivity of aryliron intermediates in iron-catalyzed cross-coupling reaction2015
Author(s)
Nakajima, S.; Takaya, H.; Nakagawa, N.; Isozaki, K.; Iwamoto, T.; Imayoshi, R.; Gower, N.; Adak, L.; Hatakeyama, T.; Honma, T.; Takagi, M.; Sunada, Y.; Nagashima, H.; Hashizume, D.; Takahashi, O.; Nakamura, M.
Organizer
Pacifichem 2015
Place of Presentation
Hawai, USA
Year and Date
2015-12-15
Related Report
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[Presentation] 鉄触媒クロスカップリング反応におけるアリール鉄中間体の合成，構造および反応性2015
Author(s)
Nakajima, Sho; Isozaki, Katsuhiro; Nakagawa, Naohisa; Imayoshi, Ryuji; Hashimoto, Toru; Gower, Nicholas J.; Adak, Laksmikanta; Honma, Tetsuo; Takagaki, Masafumi; Sunada, Yusuke; Nagashima, Hideo; Hashizume, Daisuke; Iwamoto, Takahiro; Hatakeyama, Takuji; Takaya, Hikaru; Nakamura, Masaharu
Organizer
第62回有機金属化学討論会
Place of Presentation
関西大学
Year and Date
2015-09-07
Related Report
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