Construction of Two Microporous Metal–Organic Frameworks with flu and pyr Topologies Based on Zn4(μ3-OH)2(CO2)6 and Zn6(μ6-
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- 作者：Xing-Jun Li ; Fei-Long Jiang ; Ming-Yan Wu ; Lian Chen ; Jin-Jie Qian ; Kang Zhou ; Da-Qiang Yuan ; Mao-Chun Hong
- 刊名：Inorganic Chemistry
- 出版年：2014
- 出版时间：January 21, 2014
- 年：2014
- 卷：53
- 期：2
- 页码：1032-1038
- 全文大小：427K
- ISSN：1520-510X
文摘
By employment of a tripodal phosphoric carboxylate ligand, tris(4-carboxylphenyl)phosphine oxide (H3TPO), two novel porous metal鈥搊rganic frameworks, namely, [Zn4(渭3-OH)2(TPO)2(H2O)2] (1) and [Zn6(渭6-O)(TPO)2](NO3)4路3H2O (2), have been synthesized by solvothermal methods. Complexes 1 and 2 exhibit three-dimensional microporous frameworks with flu and pyr topologies and possess rare butterfly-shaped Zn4(渭3-OH)2(CO2)6 and octahedral Zn6(渭6-O)(CO2)6 secondary building units, respectively. Large cavities and one-dimensional channels are observed in these two frameworks. Gas-sorption measurements indicate that complex 2 has a good H2 uptake capacity of 171.9 cm3 g鈥? (1.53 wt %) at 77 K and 1.08 bar, and its ideal adsorbed solution theory calculation predicts highly selective adsorption of CO2 over N2 and CH4. Furthermore, complexes 1 and 2 exhibit excellent blue emission at room temperature.