当前位置: X-MOL 学术J. Solid State Chem. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Characterization and crystal structure determination of zinc hydroxide chloride tetrahydrate Zn5(OH)8Cl2⋅4[(H2O)x(NH3)1−x]
Journal of Solid State Chemistry ( IF 3.2 ) Pub Date : 2020-07-02 , DOI: 10.1016/j.jssc.2020.121483
Xiaodong Wang , Jian Li , Goutam Kumar Das , Syahmi Johanie , Chris Vernon , Richard Shaw

A zinc hydroxide chloride compound precipitated from the ammonia stripping step of a zinc ammonia ammonium chloride complex solution was found to have an unidentified crystal structure. Ab initio structure determination was performed based on Synchrotron X-ray powder diffraction data. The derived space group and unit cell values are consistent with the Selective Area Electron Diffraction analysis in Transmission Electron Microscopy. The new structure is similar to an established crystal structure of zinc hydroxide chloride monohydrate (Zn5(OH)8Cl2H2O), but with a wider interlayer to accommodate water and ammonia molecules. It is proposed that the new compound has a monoclinic space group of P121/c1, No. 14, with unit cell of a ​= ​6.30407(16) Å, b ​= ​21.36561(16) Å, c ​= ​6.26238(15) Å, β ​= ​119.795(3), with a formula of Zn5(OH)8Cl24[(H2O)x(NH3)1x]. Complimentary techniques including Scanning Electron Microscopy & Energy Dispersive Spectroscopy analysis, Thermogravimetry & Differential Scanning Calorimetry and Fourier-transform infrared spectroscopy provide additional characteristics for the new compound. The newly solved structure of this phase will provide XRD reference for previously unsolved structure reported from mineral processing, solid-state chemistry and zinc-air battery researches.



中文翻译:

四水合氢氧化锌的表征和晶体结构测定 5824[H2ØXNH31个-X]

发现从氯化锌氨氯化铵络合物溶液的氨汽提步骤中沉淀出的氢氧化锌氯化物具有不确定的晶体结构。从头开始的结构确定是基于Synchrotron X射线粉末衍射数据进行的。导出的空间群和单位晶胞值与透射电子显微镜中的选择性区域电子衍射分析一致。新结构类似于已确定的一水合氢氧化锌氯化物的晶体结构(582H2Ø),但夹层较宽,可容纳水和氨分子。建议新化合物的单斜空间群为P121个/C1个,第14号,具有单元电池一个 = 6.30407(16)埃,b  = 21.36561(16)埃,c ^  = 6.26238(15)A,β  = 119.795(3),与的公式5824[H2ØXNH31个-X]。包括扫描电子显微镜和能量色散光谱分析,热重分析和差示扫描量热法以及傅立叶变换红外光谱在内的免费技术为新化合物提供了其他特性。该阶段新近解决的结构将为矿物加工,固态化学和锌空气电池研究报告的先前未解决的结构提供XRD参考。

更新日期:2020-08-05
down
wechat
bug