Chiral Crystal Growth under Grinding(General)
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概要
- 論文の詳細を見る
To study the establishment of homochirality observed in the crystal growth experiment of chiral molecules from a solution under grinding, we extend the lattice gas model of crystal growth as follows. A lattice site can be occupied by a chiral molecule in R or S form, or can be empty. Molecules form homoclusters by nearest neighbor bonds. They change their chirality if they are isolated monomers in the solution. Grinding is incorporated by cutting and shuffling the system randomly. It is shown that Ostwald ripening without grinding is extremely slow to select chirality, if possible. Grinding alone also cannot achieve chirality selection. For the accomplishment of homochirality, we need an enhanced chirality change on crystalline surface. With this "autocatalytic effect" and the recycling of monomers due to grinding, an exponential increase of crystal enantiomeric excess to homochiral state is realized.
- 社団法人日本物理学会の論文
- 2008-11-15
著者
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Hyuga Hiroyuki
Department Of Medical Rehabilitation Services Kaga Central Hospital
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Saito Yukio
Department Of Electrical Engineering And Electronics Aoyama Gakuin University
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