The crystal structure of l‐alanine
The crystal structure of l‐alanine
复制标题
L-丙氨酸的晶体结构
DOI：
10.1107/s0365110x66001221
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发表时间：
1966
期刊：
影响因子：
--
通讯作者：
R. E. Marsh
中科院分区：
文献类型：
--
作者：
H. Simpson;R. E. Marsh
The crystal structure of L-alanine, C3H702N, has been determined and refined by analysis of complete three-dimensional diffraction data from copper X-radiation. The crystals are orthorhombic with space group P212~21 ; the unit-cell dimensions are a = 6.032, b = 12.343, c = 5.784 A. Least-squares refinement of the positional parameters of all 13 atoms and of the individual anisotropic temperature factors of the six heavy atoms, using 581 observed reflections of non-zero weight, yielded a final R index of 0.049. The structure bears a striking resemblance to that Of DL-alanine, and involves the use of all available protons in N-H • • • O hydrogen bonds, with lengths of 2.83, 2.85, and 2.81 A,.
