New Zn-Aminotriazolate-Dicarboxylate Frameworks: Synthesis, Structures, and Adsorption Properties
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- 作者：Kai-Jie Chen ; Rui-Biao Lin ; Pei-Qin Liao ; Chun-Ting He ; Jian-Bin Lin ; Wei Xue ; Yue-Biao Zhang ; Jie-Peng Zhang ; Xiao-Ming Chen
- 刊名：Crystal Growth & Design
- 出版年：2013
- 出版时间：May 1, 2013
- 年：2013
- 卷：13
- 期：5
- 页码：2118-2123
- 全文大小：413K
- 年卷期：v.13,no.5(May 1, 2013)
- ISSN：1528-7505
文摘
Three Zn-triazolate-dicarboxylate frameworks, namely, [Zn2(atz)2(ipa)] (1, Hatz = 3-amino-1,2,4-triazole, H2ipa = isophthalic acid), [Zn2(datz)2(ipa)] (2, Hdatz = 3,5-diamino-1,2,4-triazole), and [Zn2(atz)2(oba)] (3, H2oba = 4,4鈥?oxobisbenzoic acid), have been synthesized by solvothermal reactions. Crystal-structure analyses demonstrated that 1鈥?b>3 are isoreticular three-dimensional porous structures consisting of Zn-triazolate layers and dicarboxylate pillars. The major differences of three compounds are the lengths and orientations of the pillars. Thermogravimetry analyses and powder X-ray diffraction measurements showed that 1鈥?b>3 have high thermal stability and good water stability. The adsorption properties of 1鈥?b>3 were investigated by N2, CO2, and CH4 sorption experiments. Because 3 has exposed amino groups and distinct pore shape, it has the highest CO2 uptake and CO2/N2 and CO2/CH4 selectivities at 273 K.