| Project/Area Number |
06650895
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
触媒・化学プロセス
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
UEDA Wataru Tokyo Institute of Technology, Interdisciplinary Graduate School of Science and Engineering, Lecturer, 大学院・総合理工学研究科, 講師 (20143654)
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| Project Period (FY) |
1994 – 1995
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| Project Status |
Completed (Fiscal Year 1995)
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| Budget Amount *help |
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 1995: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1994: ¥1,800,000 (Direct Cost: ¥1,800,000)
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| Keywords | Solid-catalyst / Crystal structure / Chirality / Metal cyclohexaphosphate / Asymmetric syntheses |
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| Research Abstract |
Various structural materials of cyclohexaphosphate with metal ions and cations of organic amines were synthesized with the intention of exploring chiral solid catalysts for asymmetric organic syntheses. All the synthesized crystal materials were characterized structurally. The organic cations of aliphatic amines are very important for forming structures because the monomeric cyclohexaphosphate anions neutralized with the organic cations were linked together through hydrogen bondings between the organic cations, thus forming two-dimensional network in the structures. When metal cations are present in the system, the metal cations play a role to connect cyclohexaphosphate anions, and then a infinite chain of metal cation-cyclohexaphosphate is formed, of which positive change is neutralized with again the organic cations which allows the formation of three-dimensional networks. In the case of aromatics amincs, most crystallized materials were layred structures because pi-pi interaction occurred between phenyl rings of two opposite positioned organic cation-cyclohexaphosphate unit. On the basis of the structural information of the cyclohexaphosphate compounds, we further tried to design materials having chiral circumstance in the structure using chiral organic compounds or chiral metal complexes.
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