The crystal structure of l-cysteic acid monohydrate
The crystal structure of l-cysteic acid monohydrate
复制标题
L-磺基丙氨酸一水合物的晶体结构
DOI：
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发表时间：
1971
期刊：
影响因子：
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通讯作者：
J. Karle
中科院分区：
文献类型：
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作者：
W. Hendrickson;J. Karle
The structure of L-cysteic acid monohydrate (C3H7NO5S.H20) has been determined by an X-ray diffraction analysis of a crystal in space group P212121 having 4 molecules in a unit cell of dimensions a = 6'927 + 1, b = 19.027 + 3, c = 5.305 + 1/~; densityDx = 1.77, Dmea~ = 1.75g.cm -3. The intensity data were measured on an automatic diffractometer, phases were determined by the symbolic addition procedure and the structure was refined to an R of 6.7 % by the method of least squares. The dimensions and conformation of the molecule are comparable to those of L-cysteine and taurine. The water of hydration is in the orientation determined by proton magnetic resonance. The molecules are packed in layers in the crystal and are held together by hydrogen bonding and ionic interactions.
