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Structural investigations of amorphous metal–organic frameworks formed via different routes
Physical Chemistry Chemical Physics ( IF 2.9 ) Pub Date : 2018-02-28 00:00:00 , DOI: 10.1039/c7cp08508g D. A. Keen 1, 2, 3, 4, 5 , T. D. Bennett 5, 6, 7, 8
Physical Chemistry Chemical Physics ( IF 2.9 ) Pub Date : 2018-02-28 00:00:00 , DOI: 10.1039/c7cp08508g D. A. Keen 1, 2, 3, 4, 5 , T. D. Bennett 5, 6, 7, 8
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The structures of chemically identical amorphous zeolitic amorphous frameworks (ZIFs), which were prepared from crystalline ZIF-4 via three different routes, are compared by refining atomistic models against their neutron and X-ray total scattering data. The diffraction data are very similar at all but the lowest values of momentum transfer and this is reflected in the ability of models with the same continuous random network topology to fit the data from each of the three amorphous ZIFs. Despite this there are differences in the detail; the relative positions of the lowest-Q peak in the Zn–Zn partial structure factors are consistent with differences in the densities of the different amorphous samples, and peaks in the ZIF-4 glass total scattering structure factors are in general broader, suggesting shorter-ranged correlations.
中文翻译：
通过不同途径 形成的非晶态金属-有机骨架的结构研究
通过细化原子模型对中子和X射线总散射数据进行比较，比较了由晶体ZIF-4通过三种不同途径制备的化学相同的非晶沸石无定形骨架（ZIF）的结构。衍射数据非常相似，但动量传递值最低，这反映在具有相同连续随机网络拓扑的模型拟合来自三个无定形ZIF的数据的能力中。尽管如此，细节上还是有差异的。的价低的相对位置Q Zn-Zn部分结构因子中的峰与不同无定形样品的密度差异一致，而ZIF-4玻璃总散射结构因子中的峰通常较宽，表明相关范围较短。
更新日期：2018-02-28
中文翻译：
通过不同途径 形成的非晶态金属-有机骨架的结构研究
通过细化原子模型对中子和X射线总散射数据进行比较，比较了由晶体ZIF-4通过三种不同途径制备的化学相同的非晶沸石无定形骨架（ZIF）的结构。衍射数据非常相似，但动量传递值最低，这反映在具有相同连续随机网络拓扑的模型拟合来自三个无定形ZIF的数据的能力中。尽管如此，细节上还是有差异的。的价低的相对位置Q Zn-Zn部分结构因子中的峰与不同无定形样品的密度差异一致，而ZIF-4玻璃总散射结构因子中的峰通常较宽，表明相关范围较短。
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