Structural control of mesoporous ethane-silicas with trans-(1R,2R)-diaminocyclohexane in the pore and asymmetric catalysis
文献类型：期刊论文
| 作者 | Jiang, Dongmei; Gao, Jinsuo; Li, Jun; Yang, Qihua; Li, Can |
| 刊名 | microporous and mesoporous materials
 |
| 出版日期 | 2008-08-01 |
| 卷号 | 113期号:1-3页码:385-392 |
| 关键词 | periodic mesoporous organosilicas (PMOs) chirality trans-(1R asymmetric transfer hydrogenation 2R)-diaminocyclohexane |
| 英文摘要 | design and synthesis of periodic mesoporous materials containing chiral functionalities remain to be a challenging and interesting research topic. in this study, the mesostructures of the ethane-silicas with trans-(1r,2r)-diaminocyclohexane in the pore were controlled in acidic medium using kcl and 1,3,5-trimethylbenzene (tmb) as additives in the presence of triblock copolymer p123. it was observed that an increase in si/p123 molar ratio leads to a gradual increase in the pore diameter. simultaneously, the 2-d hexagonal mesostructure gradually transforms from open pore system into plugged pore system. the addition of tmb not only expands the pore diameter but also induces the mesophase transformation from 2-d hexagonal mesostructure into mesostructured cellular foam (mcf). inorganic salt kcl plays a key role in the formation of ordered pore structure. through adjusting the amount of kcl and tmb, the mesoporous materials with bimodal pore structure call be obtained. increasing the amount of kcl call increase the pore diameter of the material in the presence of tmb. after complexed with [rh(cod)cl](2), the catalytic properties of the trans-(1r,2r)-diaminocycloilexane functionalized mesoporous ethane-silicas with various pore structures were tested in the asymmetric transfer hydrogenation of acetophenone. the catalysts show medium enantioselectivity and high activity. the catalyst with plugged pore structure exhibits the highest catalytic activity among all the catalysts investigated. (c) 2007 elsevier inc. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, applied ; chemistry, physical ; nanoscience & nanotechnology ; materials science, multidisciplinary |
| 研究领域[WOS] | chemistry ; science & technology - other topics ; materials science |
| 关键词[WOS] | organic groups ; organosilicas ; framework ; nanocapsules ; chimo ; oxide |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000257362100045 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/141202]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, Dongmei,Gao, Jinsuo,Li, Jun,et al. Structural control of mesoporous ethane-silicas with trans-(1R,2R)-diaminocyclohexane in the pore and asymmetric catalysis[J]. microporous and mesoporous materials,2008,113(1-3):385-392. |
| APA | Jiang, Dongmei,Gao, Jinsuo,Li, Jun,Yang, Qihua,&Li, Can.(2008).Structural control of mesoporous ethane-silicas with trans-(1R,2R)-diaminocyclohexane in the pore and asymmetric catalysis.microporous and mesoporous materials,113(1-3),385-392. |
| MLA | Jiang, Dongmei,et al."Structural control of mesoporous ethane-silicas with trans-(1R,2R)-diaminocyclohexane in the pore and asymmetric catalysis".microporous and mesoporous materials 113.1-3(2008):385-392. |
入库方式： OAI收割
来源：大连化学物理研究所
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