A Consideration on the Orientation of L-Alanine Crystals under a Magnetic Field
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- Suzuki Eiichi
- Department of Chemical Engineering, Iwate University
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- Ogawa Kaoru
- Advanced Science and Technology Institute, Iwate Industrial Promotion Center
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- Ogawa Satoshi
- Department of Chemical Engineering, Iwate University
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- Yagi Fumiko
- Department of Chemical Engineering, Iwate University
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- Guzman L. A.
- Department of Chemical Engineering, Iwate University
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- Shimizu Kenji
- Department of Chemical Engineering, Iwate University
Bibliographic Information
- Other Title
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- Consideration on the Orientation of L Alanine Crystals under a Magnetic Field
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Description
The effect of a magnetic field on the orientation of diamagnetic, non-aromatic L-alanine crystals was investigated. L-alanine was crystallized from a supersaturated aqueous solution in a magnetic field of 5 T. Short prismatic crystals were oriented so that their crystallographic c-axes were aligned parallel to the direction of the magnetic field. A newly designed microscope-interferometer was used for in situ observation of crystallization processes under the magnetic field. According to the observation, the c-axes of small nucleated crystals were forced to align parallel to the magnetic field direction even when the crystals were migrating in the solution due to thermal convection. Characteristic features of the orientation were explained by the small magnetic anisotropy of the L-alanine crystal, which should be derived from the CO_2 groups.
Journal
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- Journal of the Japanese Association for Crystal Growth
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Journal of the Japanese Association for Crystal Growth 30 (1), 40-45, 2003
The Japanese Association for Crystal Growth
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Details 詳細情報について
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- CRID
- 1390282680874925056
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- NII Article ID
- 110002715819
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- NII Book ID
- AN00188386
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- ISSN
- 21878366
- 03856275
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- NDL BIB ID
- 6522555
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- Text Lang
- en
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- Article Type
- journal article
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- Data Source
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- JaLC
- IRDB
- NDL Search
- CiNii Articles
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- Abstract License Flag
- Disallowed