Investigation of Transition Metal Base containing Frustrated Lewis Pairs for Potential Catalysts of Sustainable Chemical Transformations
| Project/Area Number |
15H06424
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Inorganic chemistry
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| Research Institution | Hiroshima University |
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Principal Investigator |
Shang Rong 広島大学, 理学研究科, 助教 (70754216)
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| Project Period (FY) |
2015-08-28 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | Transition metal / Frustrated Lewis pair / ligand design / transition metal / frustrated lewis pairs / boryl complexes / metal bases / catalysis / frustrated Lewis pairs / synthesis / theoretical calculations / structure / bonding / metal complexes |
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| Outline of Final Research Achievements |
Rare examples of metal complexes bearing the ligands with two Lewis acidic centers were obtained. Complexation of the tri-tert-butylazadiboriridine (1) with gold(I) complexes AuCl(L) resulted in formation of three structurally different complexes depending on the metal co-ligands. When a weak Lewis base (L=SMe2) is used, a symmetrical complex [eta2-B,B-B(tBu)N(tBu)B(tBu)]AuCl (2) was obtained with a loss of the ligand. In cases where phosphines were used, B-B bond cleavage accompanied by either a halide (L=PPh3) or phosphine (L=PMe3) migration proceeded to form different borylgoldborane complexes (3 and 4). A similar product (5) that is isostructrual to 3 was obtained by addition of dimethylaminopyridine (DMAP) to 2-4. The formation, structures and reactivity of 2-5 have been investigated, showing the effects of the second Lewis acidic center. A gold(I) complex 6 bearing a 5-membered heterocycle obtained from 3 and tert-butylisonitrile is also reported.
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Report
(3 results)
Research Products
(14 results)
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[Journal Article] Interactions of Isonitriles with Metal Boron Bonds: Insertions, Coupling, Ring Formation, and Liberation of Monovalent Boron2016
Author(s)
H. Braunschweig, M. A. Celik, R. D. Dewhurst, K. Ferkinghoff, A. Hermann, J. O. C. Jimenez-Halla, T. Kramer, K. Radacki, R. Shang, E. Siedler, F. Weissenberger, C. Werner
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Journal Title
Chem. - Euro J.
Volume: 22
Issue: 33
Pages: 11736-11744
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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