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New isoreticular phosphonate MOFs based on a tetratopic linker
Dalton Transactions ( IF 3.5 ) Pub Date : 2021-09-07 , DOI: 10.1039/d1dt02610k
Felix Steinke 1 , Ali Javed 2 , Stephan Wöhlbrandt 1 , Michael Tiemann 2 , Norbert Stock 1
Affiliation  

The tetratopic linker 1,1,2,2-tetrakis(4-phosphonophenyl)ethylene (H8TPPE) was used to synthesize the three new porous metal–organic frameworks of composition [M2(H2O)2(H2TPPE)]·xH2O (M = Al3+, Ga3+, Fe3+), denoted as M-CAU-53 under hydrothermal reaction conditions, using the corresponding metal nitrates as starting materials. The crystal structures of the compounds were determined ab initio from powder X-ray diffraction data, revealing small structural differences. Proton conductivity measurements were carried out, indicating different conductivity mechanisms. The differences in proton conductivity could be linked to the individual structures. In addition, a thorough characterization via thermogravimetry, elemental analysis, IR-spectroscopy as well as N2- and H2O-sorption is given.

中文翻译:

基于四位接头的新型等网状膦酸酯 MOF

四位连接体 1,1,2,2-四(4-膦酰基苯基)乙烯 (H 8 TPPE) 用于合成三种新型多孔金属有机骨架 [M 2 (H 2 O) 2 (H 2 TPPE) )]· x H 2 O (M = Al 3+ , Ga 3+ , Fe 3+ ),在水热反应条件下表示为M-CAU-53,使用相应的金属硝酸盐作为起始材料。化合物的晶体结构是从头开始确定的来自粉末 X 射线衍射数据,揭示了微小的结构差异。进行了质子电导率测量,表明了不同的电导机制。质子电导率的差异可能与各个结构有关。此外,还提供了通过热重分析、元素分析、红外光谱以及 N 2 - 和 H 2 O 吸附进行的全面表征。
更新日期:2021-09-13
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