MnII-based MIL-53 Analogues: Synthesis Using Neutral Bridging μ2-Ligands and Application in Liquid-Phase Adsorption and Separation of C6−C8 Aromatics
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- 作者：Guohai Xu ; Xiaoguang Zhang ; Peng Guo ; Chengling Pan ; Hongjie Zhang ; Cheng Wang
- 刊名：Journal of the American Chemical Society
- 出版年：2010
- 出版时间：March 24, 2010
- 年：2010
- 卷：132
- 期：11
- 页码：3656-3657
- 全文大小：141K
- 年卷期：v.132,no.11(March 24, 2010)
- ISSN：1520-5126
文摘
Four MnII-based MIL-53 single crystals were prepared using four neutral pyridine N-oxides as bridging μ2-ligands. In the case of 4,4′-bipridine-N,N′-dioxide (BPNO), the infinite manganese oxide chains were further interconnected by BPNO besides BDC, which allows 1D channels to be accessible for guest molecules. The liquid-phase adsorption and separation of C6−C8 aromatics using the evacuated compound as an absorbent were investigated via crystal-to-crystal transformations. Both structural evolution of the compounds and selectivity of C6−C7 aromatics of one evacuated compound could be attributed to noncovalent interactions, especially π−π interaction.