metal-organic compounds
Open access
In the title compound, [Ca(C19H11F2O2)2(CH3OH)4]·4CH3OH, the Ca2+ ion is located on an inversion centre and is hexacoordinated by two O atoms of two 4,4′′-difluoro-1,1′:3′,1′′-terphenyl-2′-carboxylate ligands and four O atoms of four methanol ligands, forming a CaO6 polyhedron with a slightly distorted octahedral coordination geometry. The Ca—O—C angle between the carboxylate group and the calcium ion is 171.8 (2)°. Two types of intermolecular hydrogen-bond interactions (C=OH and O—HO) between the carboxylate ligand, the methanol solvent molecules and the coordinating methanol ligands generate a two-dimensional network parallel to (001).
organic compounds
Open access
The title compound, C9H9N3O2S, is a monoclinic (C2/c) polymorph of the previously reported triclinic structure [Kang (2013). Acta Cryst. E69, o1327]. The molecule is almost planar with an r.m.s. deviation of 0.069 Å from the mean plane of all non-H atoms. The benzoyl and terminal thiourea fragments adopt a transoid conformation with respect to the central carbonyl O atom. Two intramolecular N—HO hydrogen bonds are present. In the crystal, N—HO and N—HS interactions link the molecules into zigzag chains extending along the c-axis direction.