MnII-based MIL-53 Analogues: Synthesis Using Neutral Bridging μ2-Ligands and Application in Liquid-Phase Adsorption and Separation of C6-C8 Aromatics was written by Xu, Guohai;Zhang, Xiaoguang;Guo, Peng;Pan, Chengling;Zhang, Hongjie;Wang, Cheng. And the article was included in Journal of the American Chemical Society in 2010.Category: pyridine-derivatives This article mentions the following:
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′-bipyridine-N,N’-dioxide (BPNO), the infinite Mn oxide chains were further interconnected by BPNO besides BDC, which allows 1-dimensional channels to be accessible for guest mols. The liquid-phase adsorption and separation of C6-C8 aromatics using the evacuated compound as an absorbent were studied 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. In the experiment, the researchers used many compounds, for example, 3,5-Dimethylpyridine 1-oxide (cas: 3718-65-8Category: pyridine-derivatives).
3,5-Dimethylpyridine 1-oxide (cas: 3718-65-8) belongs to pyridine derivatives. In contrast to benzene, Pyridine’s electron density is not evenly distributed over the ring, reflecting the negative inductive effect of the nitrogen atom. Several pyridine derivatives play important roles in biological systems. While its biosynthesis is not fully understood, nicotinic acid (vitamin B3) occurs in some bacteria, fungi, and mammals.Category: pyridine-derivatives