均三甲苯三苯甲酸作为新型锌/镉金属有机框架的连接体

Mesitylene Tribenzoic Acid as a Linker for Novel Zn/Cd Metal-Organic Frameworks.

作者信息

Bejan Dana, Dascalu Ioan-Andrei, Shova Sergiu, Trandabat Alexandru F, Bahrin Lucian G

机构信息

Intelcentre, Petru Poni Institute of Macromolecular Chemistry, 700487 Iasi, Romania.

Department of Inorganic Polymers, "Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania.

出版信息

Materials (Basel). 2022 Jun 15;15(12):4247. doi: 10.3390/ma15124247.

DOI:10.3390/ma15124247

PMID:35744310

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9227569/

Abstract

Three new Metal-Organic Frameworks, containing mesitylene tribenzoic acid as a linker and zinc () or cadmium as metals (,), were synthesized through solvothermal reactions, using DMF/ethanol/water as solvents, at temperatures of 80 °C (structures and ) and 120 °C (structure ). Following single-crystal X-ray diffraction, it was found that and crystallize in the 2/ and C2/ space groups and form 2D networks, while crystallizes in the 2 space group, forming a 3D network. All three frameworks, upon heating, were found to be stable up to 350 °C. N sorption isotherms revealed that displays a BET area of 906 m/g. Moreover, the porosity of this framework is still present after five cycles of sorption/desorption, with a reduction of 14% of the BET area, down to 784 m/g, after the fifth cycle. The CO loading capacity of was found to be 2.9 mmol/g at 0 °C.

摘要

通过溶剂热反应，以均三甲苯三苯甲酸为连接体、锌（）或镉为金属（，），使用N,N -二甲基甲酰胺/乙醇/水作为溶剂，在80℃（结构和）和120℃（结构）的温度下合成了三种新型金属有机框架材料。通过单晶X射线衍射发现，和在2/和C2/空间群中结晶并形成二维网络，而在2空间群中结晶，形成三维网络。发现所有这三种框架在加热至350℃时都是稳定的。N吸附等温线表明，的BET比表面积为906 m²/g。此外，在五个吸附/解吸循环后，该框架的孔隙率仍然存在，第五个循环后BET比表面积降低了14%，降至784 m²/g。在0℃时，的CO负载量为2.9 mmol/g。