Metal complexes with 2,3-di(pyridin-2-yl)quinoxaline exhibit a wide variety of M-N bonding. Some complexes bind exclusively with the pyridinyl nitrogens, others utilizing only the quinoxaline nitrogens, and a few using both pyridinyl ring and quinoxaline ring nitrogens. 2,3-Di(pyridin-2-yl)pyrido[3,4-b]pyrazine and 7-bromo-2,3-di(pyridin-2-yl)pyrido[2,3-b]pyrazine were synthesized by the acid-catalyzed condensation of 2,2’-pyridil with the corresponding diaminopyridine and offer even more potential metal binding sites. Dipyridinylpyridopyrazines were purified using column chromatography, fully characterized, and reacted in 2:1 mole ratios with silver(I) and copper(II) perchlorate salts.

Silver(I) and copper(II) complexes with 2,3-di(pyridine-2-yl)pyridopyrazines

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

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