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首页> 外文期刊>Crystal growth & design >Mineral-Inspired Crystal Growth and Physical Properties Na2Cu(SO4)(2) and Review of Na2M(SO4)(2)(H2O)(x) (x=0-6) Compounds
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Mineral-Inspired Crystal Growth and Physical Properties Na2Cu(SO4)(2) and Review of Na2M(SO4)(2)(H2O)(x) (x=0-6) Compounds

机译:矿物质启发晶体生长和物理性质Na2Cu(SO4)(2)和Na 2 M(SO 4)(2)(2)(H2O)(X)(X = 0-6)化合物的复述

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摘要

Single crystals and polycrystalline samples of a synthetic analogue of saranchinaite, Na2Cu(SO4)(2), have been prepared by two different methods. The structural analysis revealed unusual heptahedral CuO7 coordination [4 + 1 + 2] of Cu2+ cations in its crystal structure. The title compound crystallizes in the noncentrosymmetric space group P2(1) and exhibits the averaged nonlinear coefficient d = 1.4[d(14)(SiO2)] approximate to 0.5 pm/V. Electrochemical tests showed a limited electrochemical performance and low mobility of Na ions in the structure. The magnetic properties of Na2Cu(SO4)(2) reflect its crystal structure with half of copper cations as mainly paramagnetic and the other half as strongly engaged in antiferromagnetic dimer interactions. Analysis of the synthesis methods for preparation of the other Na-containing anhydrous sulfates is reported. Dehydration of the Na2M(SO4)(2)(H2O)(x) (x = 0-6) phases, various structure types, and the structural complexity of Na2M(SO4)(2) (M = Mn, Co, Ni, Cu, Zn, Cd) compounds are also discussed.
机译:通过两种不同的方法制备了Saranchinite,Na 2Cu(SO 4)(2)的合成类似物的单晶和多晶样品。结构分析显示了其晶体结构中的不寻常的七萜类CuO7配位[4 + 1 + 2] Cu2 +阳离子。标题化合物在非浓对称空间组P2(1)中结晶,并显示平均非线性系数& D& = 1.4 [D(14)(SiO2)]近似为0.5 pm / v。电化学测试显示了结构中的电化学性能和Na离子的低迁移率。 Na2Cu(SO4)(2)的磁性性能反映其晶体结构,其中一半的铜阳离子为主要是顺磁性,另一半在强烈地接合反铁磁性二聚体相互作用。据报道了对制备其他含Na无水硫酸盐的合成方法的分析。 Na 2M(SO 4)(2)(H 2 O)(X)(X = 0-6)相的脱水,各种结构类型和Na 2M(SO 4)(2)(M = Mn,Co,Ni,还讨论了Cu,Zn,Cd)化合物。

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