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![Cercosporin-Photocatalyzed [4+1]- and [4+2]-Annulations of Azoalkenes Under Mild Conditions](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F60786.jpg&w=3840&q=50)
Cercosporin-Photocatalyzed [4+1]- and [4+2]-Annulations of Azoalkenes Under Mild Conditions
Published on: July 17, 2020
The cocrystal of 3-hydroxy-2-naphthoic acid and 4,4'-bipyridine
Ben-Yong Lou1, Xiao-Dong Huang, Xiang-Chao Lin
1Department of Chemistry and Chemical Engineering, Minjiang University, Fuzhou, Fujian 350108, People's Republic of China. loubenyong@163.com
Abstract:
4,4'-Bipyridine cocrystallizes with 3-hydroxy-2-naphthoic acid in a 1:2 ratio to give a centrosymmetric three-component supramolecular adduct, namely 3-hydroxy-2-naphthoic acid-4,4'-bipyridine (2/1), C11H8O3.0.5C10H8N2, in which 4,4'-bipyridine is located on an inversion center. The pyridine-carboxylic acid heterosynthon generates an infinite one-dimensional hydrogen-bonded chain via pi-pi interactions between naphthyl and 4,4'-bipyridine groups. The one-dimensional chains are further assembled into a three-dimensional network by weak C-H...pi interactions between pyridyl and naphthyl rings, and C-H...O interactions between 3-hydroxy-2-naphthoic acid molecules.
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