2024-03-28T10:38:29Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00011992
2023-01-16T03:58:35Z
336:695:696
Mechanism of Chirality Conversion by Grinding Crystals -Ostwald Ripening vs Crystallization of Chiral Clusters-
Uwaha, Makio
Katsuno, Hiroyasu
open access
社団法人日本物理学会
enantiomer
chirality conversion
homochirality
crystallization
enantiomer
chiral cluster
autocatalysis
NaClO_3
racemization
It has been found that the simple grinding of crystals in a solution causes the conversion of the chiral structure of crystals and, in the case of organic molecules, the resultant conversion of molecular chirality. In order to clarify the mechanism of the chirality conversion, we study the change in the size distribution of chiral clusters in a Becker-D¨oring type model, in which chiral dimer reaction and grinding are implemented. In the absence of grinding, Ostwald ripening may cause chirality conversion if the initial size distribution is appropriate. With grinding crystals, the crystallization of chiral clusters causes an exponential amplification of the initial chiral imbalance resulting in a homochiral state. During chirality conversion, the total size distribution does not change.
The Physical Society of Japan
2009-02-10
eng
journal article
AM
http://hdl.handle.net/2237/13866
https://nagoya.repo.nii.ac.jp/records/11992
http://jpsj.ipap.jp/link?JPSJ/78/023601/
00319015
Journal of the Physical Society of Japan
78
2
023601
https://nagoya.repo.nii.ac.jp/record/11992/files/uwaha-k09jpsj_teisei.pdf
application/pdf
41.9 kB
2018-02-20
https://nagoya.repo.nii.ac.jp/record/11992/files/uwaha-k09jpsj.pdf
application/pdf
898.8 kB
2018-02-20