In 2022,Antoni, Patrick W.; Golz, Christopher; Hansmann, Max M. published an article in Angewandte Chemie, International Edition. The title of the article was 《Organic Four-Electron Redox Systems Based on Bipyridine and Phenanthroline Carbene Architectures》.Safety of 2,6-Dibromopyridine The author mentioned the following in the article:
Novel organic redox systems that display multistage redox behavior are highly sought-after for a series of applications such as organic batteries or electrochromic materials. Here we describe a simple strategy to transfer well-known two-electron redox active bipyridine and phenanthroline architectures into novel strongly reducing four-electron redox systems featuring fully reversible redox events with up to five stable oxidation states. We give spectroscopic and structural insight into the changes involved in the redox-events and present characterization data on all isolated oxidation states. The redox-systems feature strong UV/Vis/NIR polyelectrochromic properties such as distinct strong NIR absorptions in the mixed valence states. Two-electron charge-discharge cycling studies indicate high electrochem. stability at strongly neg. potentials, rendering the new redox architectures promising lead structures for multi-electron anolyte materials. The experimental part of the paper was very detailed, including the reaction process of 2,6-Dibromopyridine(cas: 626-05-1Safety of 2,6-Dibromopyridine)
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.Safety of 2,6-Dibromopyridine