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2-Oxo-1,2-dihydro­pyridine-3-carboxylic acid

✍ Scribed by Long, Sihui ;Siegler, Maxime ;Li, Tonglei

Publisher
International Union of Crystallography
Year
2006
Tongue
English
Weight
173 KB
Volume
62
Category
Article
ISSN
1600-5368

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✦ Synopsis

The title compound, C 6 H 5 NO 2 , a tautomer of 2-hydroxynicotinic acid, adopts a planar conformation. An intramolecular O-HÁ Á ÁO hydrogen bond of 2.504 (2) A ˚is found. The compound forms one-dimensional hydrogen-bonded chains along the [101] direction via an intermolecular N-HÁ Á ÁO hydrogen bond of 2.810 (2) A ˚.

📜 SIMILAR VOLUMES

6-Oxo-1,6-dihydropyridine-3-carboxylic a
6-Oxo-1,6-dihydropyridine-3-carboxylic acid
✍ Gupta, Salin ;Long, Sihui ;Li, Tonglei 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 860 KB

The title compound, C 6 H 5 NO 3 , commonly known as 6hydroxynicotinic acid, is found to be a tautomer of it. Four molecules, all adopting a planar conformation, are found in the asymmetric unit. The compound forms hydrogen-bonded sheets parallel to the [001] direction via intermolecular N-HÁ Á ÁO a

Zwitterionic 3-carboxyl­atomethyl-3-carb
Zwitterionic 3-carboxyl­atomethyl-3-carboxy­methyl-2-oxo-2,3-dihydro­imidazo[1,2-a]pyridin-1-ium
✍ Qiao, Shu ;Yong, Guo-Ping ;Xie, Yu ;Wang, Zhi-Yong 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 191 KB

The title compound, C 11 H 10 N 2 O 5 , exists in the solid state as a carboxylate-imidazolium zwitterion. Intermolecular O-HÁ Á ÁO and N-HÁ Á ÁO hydrogen bonds link the molecules into two-dimensional layers.

2-Chloro­pyridine-3-carboxylic acid
2-Chloro­pyridine-3-carboxylic acid
✍ de Souza, Marcus V. N. ;Wardell, Solange M. S. V. ;Howie, R. Alan 📂 Article 📅 2005 🏛 International Union of Crystallography 🌐 English ⚖ 155 KB

The molecules of the title compound, C 6 H 4 ClNO 2 , are almost completely planar. Hydrogen bonds of the form O-HÁ Á ÁN interconnect the molecules to form infinite chains, which are also planar and which are packed face-to-face to form well defined layers of molecules.