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Structural analysis of interpenetrated methyl-modified MOF-5 and its gas-adsorption properties.
Acta Crystallographica Section C ( IF 0.7 ) Pub Date : 2020-08-05 , DOI: 10.1107/s2053229620010177 Koh Sugamata 1 , Daichi Yanagisawa 1 , Keiko Awano 1 , Teruyuki Iihama 1 , Mao Minoura 1
Acta Crystallographica Section C ( IF 0.7 ) Pub Date : 2020-08-05 , DOI: 10.1107/s2053229620010177 Koh Sugamata 1 , Daichi Yanagisawa 1 , Keiko Awano 1 , Teruyuki Iihama 1 , Mao Minoura 1
Affiliation
The first example of an interpenetrated methyl‐modified MOF‐5 with the formula Zn4O(DMBDC)3(DMF)2, where DMBDC2− is 2,5‐dimethylbenzene‐1,4‐dicarboxylate and DMF is N,N‐dimethylformamide (henceforth denoted as Me2MOF‐5‐int), namely, poly[tris(μ4‐2,5‐dimethylbenzene‐1,4‐dicarboxylato)bis(N,N‐dimethylformamide)‐μ4‐oxido‐tetrazinc(II)], [Zn4(C10H8O4)3O(C3H7NO)2]n, has been obtained from a solvothermal synthesis of 2,5‐dimethylbenzene‐1,4‐dicarboxylic acid and Zn(NO3)2·6H2O in DMF. A systematic study revealed that the choice of solvent is of critical importance for the synthesis of phase‐pure Me2MOF‐5‐int, which was thoroughly characterized by single‐crystal and powder X‐ray diffraction (PXRD), as well as by gas‐adsorption analyses. The Brunauer–Emmett–Teller surface area of Me2MOF‐5‐int (660 m2 g−1), determined by N2 adsorption, is much lower than that of nonpenetrated Me2MOF‐5 (2420 m2 g−1). However, Me2MOF‐5‐int displays an H2 uptake capacity of 1.26 wt% at 77 K and 1.0 bar, which is comparable to that of non‐interpenetrated Me2MOF‐5 (1.51 wt%).
中文翻译:
互穿甲基修饰的MOF-5的结构分析及其气体吸附性能。
的第一示例的互穿甲基改性的MOF-5与式的Zn 4 O(DMBDC)3(DMF)2,其中DMBDC 2-是2,5-二甲基苯-1,4-二羧酸酯和DMF是Ñ,ñ -二甲基甲酰胺(以下记为我2 MOF-5-INT),也就是,聚[三(μ 4 -2,5-二甲基苯1,4-二dicarboxylato)双(ñ,ñ二甲基甲酰胺)-μ 4 -oxido-tetrazinc (II)],[Zn 4(C 10 H 8 O 4)3 O(C 3 H 7NO)2 ] n,是由DMF中的溶剂热合成2,5-二甲基苯-1,4-二羧酸和Zn(NO 3)2 ·6H 2 O获得的。一项系统的研究表明,溶剂的选择对于纯Me 2 MOF-5int的合成至关重要,这种合成通过单晶和粉末X射线衍射(PXRD)以及气体吸附分析。Me 2 MOF-5-int(660 m 2 g -1)的Brunauer-Emmett-Teller表面积(通过N 2吸附确定)比未渗透的表面积低得多Me 2 MOF-5(2420 m 2 g -1)。但是,Me 2 MOF-5-int在77 K和1.0 bar下显示的H 2吸收能力为1.26 wt%,这与未渗透的Me 2 MOF-5(1.51 wt%)相当。
更新日期:2020-08-05
中文翻译:
互穿甲基修饰的MOF-5的结构分析及其气体吸附性能。
的第一示例的互穿甲基改性的MOF-5与式的Zn 4 O(DMBDC)3(DMF)2,其中DMBDC 2-是2,5-二甲基苯-1,4-二羧酸酯和DMF是Ñ,ñ -二甲基甲酰胺(以下记为我2 MOF-5-INT),也就是,聚[三(μ 4 -2,5-二甲基苯1,4-二dicarboxylato)双(ñ,ñ二甲基甲酰胺)-μ 4 -oxido-tetrazinc (II)],[Zn 4(C 10 H 8 O 4)3 O(C 3 H 7NO)2 ] n,是由DMF中的溶剂热合成2,5-二甲基苯-1,4-二羧酸和Zn(NO 3)2 ·6H 2 O获得的。一项系统的研究表明,溶剂的选择对于纯Me 2 MOF-5int的合成至关重要,这种合成通过单晶和粉末X射线衍射(PXRD)以及气体吸附分析。Me 2 MOF-5-int(660 m 2 g -1)的Brunauer-Emmett-Teller表面积(通过N 2吸附确定)比未渗透的表面积低得多Me 2 MOF-5(2420 m 2 g -1)。但是,Me 2 MOF-5-int在77 K和1.0 bar下显示的H 2吸收能力为1.26 wt%,这与未渗透的Me 2 MOF-5(1.51 wt%)相当。