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Updated: May 5, 2026

Synthesis and Catalytic Performance of Gold Intercalated in the Walls of Mesoporous Silica
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Synthesis and Catalytic Performance of Gold Intercalated in the Walls of Mesoporous Silica

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キラルメソポラスシリカの合成と特徴付け

Shunai Che1, Zheng Liu, Tetsu Ohsuna

  • 1Department of Chemistry, School of Chemistry and Chemical Technology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China. chesa@sjtu.edu.cn

Nature
|May 21, 2004
PubMed
まとめ

研究者は,新しいサーファクタントテンプレートメソ法を使用して,オーダーされたキラルメソポラスシリカを開発しました. このブレークスルーにより,触媒と分離における高度な応用のために,エナティオメリックに純粋な材料の作成が可能になりました.

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Chirality02:25

Chirality

Chirality is a term that describes the lack of mirror symmetry in an object. In other words, chiral objects cannot be superposed on their mirror images. For example, our feet are chiral, as the mirror image of the left foot, the right foot, cannot be superposed on the left foot.
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Molecules that possess multiple chiral centers can afford a large number of stereoisomers. For instance, while some molecules like 2-butanol have one chiral center, defined as a tetrahedral carbon atom with four different substituents attached, several molecules like butane-2,3-diol have multiple chiral centers. A simple formula to predict the number of stereoisomers possible for a molecule with n chiral centers is 2n. However, there can be a lower number where some of the stereoisomers are...
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The concept of prochirality leads to the nomenclature of the individual faces of a molecule and plays a crucial role in the enantioselective reaction. It is a concept where two or more achiral molecules react to produce chiral products. A typical process is the reaction of an achiral ketone to generate a chiral alcohol. Here, the achiral reactant reacts with an achiral reducing agent, sodium borohydride, to generate an equimolar mixture of the chiral enantiomers of the product. For example, an...
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