2-(Carboxymethylsulfanyl)pyridine-3-carboxylic acid monohydrate

Abstract

The title compound, C8H7NO4S·H2O, was obtained by reaction of 2-mercaptopyridine-3-carboxylic acid with chloro­acetic acid. In the mol­ecular structure, the dihedral angle between the two least-squares planes defined by the pyridine ring and the carb­oxy group is 8.32 (9)°. The carboxy­methyl­sulfanyl group makes a torsion angle of 82.64 (12)° with the pyridine ring. An intra­molecular O—H⋯N hydrogen bond between the acidic function of the carboxy­methyl­sulfanyl group and the pyridine N atom stabilizes the conformation, whereas inter­molecular O—H⋯O hydrogen bonding with the uncoordinated water mol­ecules is responsible for packing of the structure, leading to chains propagating in [001].

Syntheses, Structures, and Properties of Three Metal‐Organic Complexes with Different Dimensionality Based on Dipyrido[3,2‐d:2′3′‐f]quinoxaline and Different Dicarboxylates

“…[38,39] All other chemicals purchased were of reagent grade and used without further purification. FT-IR spectra (KBr pellets) were taken with a Varian 640 FT-IR spectrometer in the 500-4000 cm -1 region.…”