Xylosyl Stacking Structure of n-Heptyl β-D-Xyloside in the Hydrous Crystal
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概要
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The crystal structures of n-heptyl β-D-xyloside were determined by X-ray analysis at a room temperature of 23°C. Hydrous crystals were obtained by a repeated recrystallization from the aqueous solutions of enzymatically synthesized n-hexyl β-D-xyloside. The crystal is orthorhombic, and the space group is P212121 with Z=8. The cell dimensions are as follows : a=53.215(8), b=8.8301(9), c=6.5276(7)Å, β=95.28°(1). It was confirmed that the molecules formed intermolecular networks in infinite chains linked among the xylosyl OH and H2O. The high cloud point (33.7°C) of n-hexyl β-D-xyloside in aqueous solutions may be caused by the intermolecular hydrogen bondings of xylosyl OH residues.
- 2001-07-01
著者
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ISHIGAMI Yutaka
Tokyo Gakugei University
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Goto Midori
National Institute Of Advanced Industrial Science And Technology (aist) Aist Tsukuba Central 5
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Shinoyama Hirofumi
Department Of Agricultural Chemistry Chiba University
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TAKIZAWA Yasuomi
Tokyo Gakugei University
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Shinoyama Hirofumi
Department of Advanced Bioresources Science, Graduate School of Science and Technology, Chiba University
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Goto Midori
National Chemical Laboratory for Industry
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