2007 Fiscal Year Final Research Report Summary
Development of Materials for Asymmetric Recognition by Chiral Modification of Ordered Mesoporous Materials
| Project/Area Number |
18360387
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Catalyst/Resource chemical process
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| Research Institution | Yokohama National University |
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Principal Investigator |
KUBOTA Yoshihiro Yokohama National University, Faculty of Engineering, Professor (30283279)
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| Co-Investigator(Kenkyū-buntansha) |
TATSUMI Takashi Tokyo Institute of Technology, Chemical Resources Laboratory, Professor (30101108)
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| Project Period (FY) |
2006 – 2007
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| Keywords | ordered porous material / mesoporous silica / material for asymmetric recognition / catalyst / adsorbent / surfactant / self-organization / helical pore |
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| Research Abstract |
Mesoporous silica AMS (anionic surfactant templated mesoporous silica) with helical particles were successfully synthesized by using the chiral anionic surfactants N-miristoyl derivatives of D- and L-alanines (C_<14>-L-AlaA and C_<14>-D-AlaA), as well as D- and L-valines (C_<14>-L-ValA and C_<14>-D-ValA). The left-/right-handed ratios for the helical particles synthesized with L-isomers and D-isomers proved to be 75/25 and 25/75, respectively, suggesting that the predominant handedness of helices was directed by the handedness of the surfactants. The synthesis conditions for obtaining a chiral mesoporous silica have been optimized. The macroscopic morphology as well as the mesostructure of the chiral mesoporous silica was extremely sensitive to the synthetic conditions. The influence of the stereoisomerism of the chiral surfactant on the mesostructure and morphology of chiral AMS was investigated by using a mixture of C_<14>-L-AlaA and C_<14>-D-AlaA. Helical rod-shaped AMS was found to be effective for asymmetric separation of recemic trifluoroacetylalanine ethyl ester (CF_3CO-Ala-Oet). Synthesis of AMS by using asparagin derivatives has also been investigated.
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Research Products
(148 results)
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[Presentation] Synthesis of well-ordered nanospheres with uniform mesopores assisted by basic amino acids2007
Author(s)
T, Yokoi, M, Iwama, R, Watanabe, Y, Sakamoto, O, Terasaki, Y, Kubota, J.N, Kondo, T, Okubo, T, Tatasumi
Organizer
15th International Zeolite Conference
Place of Presentation
Beijing
Year and Date
2007-08-13
Description
「研究成果報告書概要(欧文)」より
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[Presentation] Transformation of MWW structure in the Hydrothermal System2007
Author(s)
W, Fan, S, Wei, T, Yokoi, P, Wu, Y, Kubota, T, Tatasumi
Organizer
15th International Zeolite Conference
Place of Presentation
Beijing
Year and Date
2007-08-13
Description
「研究成果報告書概要(欧文)」より
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[Presentation] Synthesis of silica nanospheres with well-ordered mesopores assisted by amino acids2006
Author(s)
T, Yokoi, M, Iwama, T, Okubo, Y, Sakamoto, O, Terasaki, Y, Kubota, T, Tatsumi
Organizer
5th International Mesostructured Materials Symposium(5th IMMS)
Place of Presentation
Shanghai
Year and Date
2006-08-06
Description
「研究成果報告書概要(欧文)」より
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[Presentation] Synthesis of nove mesoporous silica by using newly designed amino acic derivative as a surfactant2006
Author(s)
Y, Ara, Y, Yamataka, S, Sato, T, Yokoi, Y, Sakamoto, O, Terasaki, Y, Kubota, T, Tatsumi
Organizer
International Symposium on Zeolites and Microporous Crystals(ZMPC2006)
Place of Presentation
Yonago
Year and Date
2006-08-01
Description
「研究成果報告書概要(欧文)」より
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