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Synthesis, crystal structure, characterizations and magnetic study of a novel two-dimensional iron fluoride
Journal of Solid State Chemistry ( IF 3.2 ) Pub Date : 2018-03-31 , DOI: 10.1016/j.jssc.2018.03.039
Sabrine Bouketaya , Mouna Smida , Mohammed S.M. Abdelbaky , Mohamed Dammak , Santiago García-Granda

A new hybrid compound formulated as [Fe3F8(H2O)2](Am2TAZ)2 (Am2TAZ= 3,5-diamino-1,2,4-triazole) was prepared under hydrothermal conditions. The crystal structure was solved by single-crystal X-ray diffraction and the bulk was characterized by thermal analyses (TG-MS), vibrational spectroscopy (FTIR, Raman), Ultraviolet-visible spectroscopy (UV–Vis), and scanning electron microscopy (SEM-EDX). It crystallizes in the triclinic system space group P 1̅ with unit cell parameters a= 7.100(2) Å, b= 7.658(2) Å, c= 8.321(2) Å, α = 107.330(20)°, β = 111.842(18)°, γ = 93.049(17)°, Z = 1 and V= 394.01(17) Å3. The studied X-ray crystal structure shows the two oxidation states for iron atoms (Fe2+, Fe3+) and generates a 2D inorganic network, built up of inorganic layers constructed from infinite inorganic chains running along a axis. In fact, these chains are connected via (Fe3+(3)F6) octahedral. OW-HF and N-HF hydrogen bonds, making up the whole 3D network, are strongly linked in the layers. Magnetization measurements were performed, exhibiting the paramagnetic feature of the studied compound above 150 K.



中文翻译:

新型二维氟化铁的合成,晶体结构,表征和磁性研究

在水热条件下制备了一种新的杂化化合物,其配制为[Fe 3 F 8(H 2 O)2 ](Am 2 TAZ)2(Am 2 TAZ = 3,5-二氨基-1,2,4-三唑)。晶体结构通过单晶X射线衍射解析,并通过热分析(TG-MS),振动光谱法(FTIR,Raman),紫外可见光谱法(UV-Vis)和扫描电子显微镜( SEM-EDX)。它在三斜晶系空间群P中结晶1个̅晶胞参数a = 7.100(2)Å,b = 7.658(2)Å,c = 8.321(2)Å,α= 107.330(20)°,β= 111.842(18)°,γ= 93.049(17) °,Z = 1和V = 394.01(17)埃3。研究的X射线晶体结构显示了铁原子的两个氧化态(Fe 2 +,Fe 3+),并生成2D无机网络,该网络由沿轴延伸无限无机链构成的无机层组成。实际上,这些链是通过(Fe 3+(3)F 6)八面体连接的。OW-H F和NH 构成整个3D网络的F氢键在各层中紧密相连。进行了磁化测量,显示了所研究化合物在150 K以上的顺磁特征。

更新日期:2018-04-08
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