Li Hai-Zhen, Du Dong-Ying, Sun Yayong, Wang Fei, Zhang Jian
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, The Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China.
National & Local United Engineering Lab for Power Battery, Department of Chemistry, Northeast Normal University, Changchun 130024, P. R. China.
Dalton Trans. 2020 Apr 15;49(15):4690-4693. doi: 10.1039/d0dt00791a.
Presented here are two isostructural SOD-type zeolitic tetrazolate-imidazolate frameworks (ZTIFs), Zn(etz)0.86(mim)1.14 (ZTIF-9, Hetz = 5-ethyltetrazole, Hmim = 2-methylimidazole) and Zn(vtz)0.63(mim)1.37 (ZTIF-10, Hvtz = 5-vinyltetrazole). The adjustment of the ligand ratios within these ZTIFs was realized through changing the substituent groups of tetrazole ligands. Remarkably, ZTIF-9 with a suitable ligand ratio perfectly balances gas uptake and stability, exhibiting 6-fold improvement of C2H2 uptake compared to the prototype ZIF-8 (Zn(mim)2).
本文展示了两种同构的超氧化物歧化酶（SOD）型沸石四唑 - 咪唑框架（ZTIFs），即Zn(etz)0.86(mim)1.14（ZTIF - 9，Hetz = 5 - 乙基四唑，Hmim = 2 - 甲基咪唑）和Zn(vtz)0.63(mim)1.37（ZTIF - 10，Hvtz = 5 - 乙烯基四唑）。通过改变四唑配体的取代基来实现这些ZTIFs内配体比例的调整。值得注意的是，具有合适配体比例的ZTIF - 9完美地平衡了气体吸附和稳定性，与原型ZIF - 8（Zn(mim)2）相比，其乙炔吸附量提高了6倍。
