✍ Scribed by Gupta, Salin ;Long, Sihui ;Li, Tonglei
No coin nor oath required. For personal study only.
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 and O-HÁ Á ÁO hydrogen bonds. Each sheet consists of interconnected dimers created by R 2 2 (8) N-HÁ Á ÁO hydrogenbonded motifs and infinite chains formed by C(7) hydrogenbonded motifs. Alternatively, these sheets can be viewed as infinitely fused 32-membered hydrogen-bonded rings. Related literature See Tinschert et al. (1997) for background; Dogra (2005) for spectral studies; Etter (1990) for hydrogen bonding motifs; Long et al. (2006) for a similar structure.
📜 SIMILAR VOLUMES
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 bon
The title compound, [Sn(C~6~H~5~)~3~(C~6~H~4~NO~3~)], possesses an infinite chain structure. The SnO~2~C~3~ centre has distorted trigonal–bipyramidal geometry with the O atoms in the apical positions. A strong intermolecular N—H...O hydrogen bond results in the formation of double chains.
In the natural product title compound, C 13 H 15 NO 4 , intramolecular O-HÁ Á ÁO hydrogen bonds help to establish the conformation. ## Related literature For background, see: Jiao et al. (2006); Shen et al. (2006). Experimental Crystal data C 13 H 15 NO 4 M r = 249.26 Orthorhombic, P2 1 2 1 2 1 a