In 2019,Journal of the American Chemical Society included an article by Chi, Xiaodong; Cen, Wanglai; Queenan, Jack A.; Long, Lingliang; Lynch, Vincent M.; Khashab, Niveen M.; Sessler, Jonathan L.. Category: pyridine-derivatives. The article was titled 《Azobenzene-Bridged Expanded “”Texas-sized”” Box: A Dual-Responsive Receptor for Aryl Dianion Encapsulation》. The information in the text is summarized as follows:
We report an expanded “”Texas-sized”” mol. box (AzoTxSB) that incorporates photoresponsive azobenzene bridging subunits and anion recognition motifs. The shape of this box can be switched through light induced E ↔ Z photoisomerization of the constituent azobenzenes. This allows various anionic substrates to be bound and released by using different forms of the box. Control can also be achieved using other environmental stimuli, such as pH and anion competition. In the part of experimental materials, we found many familiar compounds, such as 2,6-Dibromopyridine(cas: 626-05-1Category: pyridine-derivatives)
2,6-Dibromopyridine(cas: 626-05-1) belongs to pyridine. Pyridine’s structure is isoelectronic with that of benzene, but its properties are quite different. Pyridine is completely miscible with water, whereas benzene is only slightly soluble. Like all hydrocarbons, benzene is neutral (in the acid–base sense), but because of its nitrogen atom, pyridine is a weak base.Category: pyridine-derivatives