The crystal structure of, and the hydrogen bonding in, the super-acid salt potassium tri-hydrogen di-succinate: a direct solution of the phase problem based on neutron-diffraction measurements
The crystal structure of, and the hydrogen bonding in, the super-acid salt potassium tri-hydrogen di-succinate: a direct solution of the phase problem based on neutron-diffraction measurements
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超酸盐三氢二琥珀酸钾的晶体结构和氢键：基于中子衍射测量的相位问题的直接解决方案
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发表时间：
1973
期刊：
影响因子：
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通讯作者：
J. Speakman
中科院分区：
文献类型：
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作者：
R. Dunlop;J. Speakman
标题化合物KHS(02C·CH_2·CH_2·CO_2)_2属单斜晶系，晶胞内有四个单元，a=7.404，b=18.437，c=9.006，β=109.6°，空间群为Ρ2i/c。用直接法求解结构Wei，用各向异性最小二乘法精化到Ji=8.6%。该结构包含无限的氢丁二酸阴离子链，通过氢键连接；在这些链上，琥珀酸分子通过一对氢键与主链上连续阴离子的相应氧原子相连。
The title compound, KHs(02C · CH2 · CH2 · C02)2, crystallizes in the monoclinic system with four of the above units in a cell with a = 7.404, b = 18.437, c = 9.006 Ä, β = 109.6°, and with space group Ρ 2i/c. The intensities of some 1200 neutron reflections were measured. The structure weis solved by a direct method, and refined to Ji = 8 .6% by anisotropic least-squares analysis. The structure embodies infinite chains of hydrogen-succinate anions linked by hydrogen bonds; to these chains, succinic acid molecules are joined each by a pair of hydrogen bonds to corresponding oxygen atoms of successive anions along the main chain.