metal-organic compounds
Open access
In the structure of the title coordination polymer, [K(C8H5N2O6)]n, each ligand bridges six K+ cations. The carboxylate group coordinates both bidentately to one K+ ion and monodentately to two K+ ions, while one nitro group coordinates bidentately to a fourth K+ ion. The last two K+ ions are coordinated by the remaining nitro group, one in a bidentate fashion, the other monodentately through one O atom. This bridging mode results in a three-dimensional network. The coordination geometry of the K+ ion is represented by an irregular KO9 polyhedron. Very weak C—HO interactions are observed in the crystal structure.
organic compounds
Open access
The title molecule, C16H13ClO2, is trans with respect to the C=C double bond. The dihedral angles between the mean plane of the prop-2-en-1-one unit and those of the 3-chloro- and 4-methoxy-substituted benzene rings are 20.93 (9) and 20.42 (10)°, respectively, and the dihedral angle between the mean planes of the two benzene rings is 40.96 (5)°. The crystal structure is stabilized by weak intermolecular C—HO hydrogen bonds, forming chains along the b axis.