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Water adsorption and magnetic properties of MnII-MOFs assembled by triazine-based polycarboxylate and 4, 4′-bipy
Journal of Solid State Chemistry ( IF 3.3 ) Pub Date : 2020-01-17 , DOI: 10.1016/j.jssc.2020.121204
Lu Feng , Fan Ye , Xiyi Ning , Min Zhou , Haobo Hou

A novel MOFs, {[Mn6 (TTHA)2 (4, 4′-bipy)3(H2O)10]⋅3H2O}n (1), where H6TTHA = 1,3,5-triazine-2,4,6-triamine hexaacetic acid, has been synthesized under hydrothermal condition and fully structurally characterized. The X-ray single-crystal diffraction measurement and topological analysis indicate that 1 exhibits a 3D network with 2, 3, 4, 4-connected topology. Moreover, the adsorption performance study of 1 shows a general water adsorption capacity of 7.61% (4.226 mmol/g) at 90% RH and 298 K. Additionally, the investigation of magnetic susceptibility on 1 reveals that weak antiferromagnetic interactions were dominant within multinuclear Mn(II) units, according to the analysis of fit constants including J and θ.



中文翻译:

三嗪基多羧酸盐和4,4′-联吡啶组装的Mn II -MOFs的吸水和磁性

一种新型的MOF,{[锰6(TTHA)2(4,4'-联吡啶)3(H 2 O)10 ]⋅3H 2 ö} Ñ1),其中,H 6 TTHA = 1,3,5-三嗪-2,4,6-三胺六乙酸是在水热条件下合成的,具有完整的结构特征。X射线单晶衍射测量和拓扑分析表明1展示具有2、3、4、4连接拓扑的3D网络。此外,对1的吸附性能研究表明,在90%RH和298 K下,一般的水吸附容量为7.61%(4.226 mmol / g)。此外,对磁化率的研究根据对包括Jθ的拟合常数的分析,图1揭示了在多核Mn(II)单元中弱的反铁磁相互作用是主要的。

更新日期:2020-01-17
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