metal-organic compounds
Open access
In the title heterodinuclear complex, [CuNa(BF4)(C8H7O3)2]n, the CuII ion is four-coordinated by four O atoms of two 2-formyl-6-methoxyphenolate ligands, giving rise to a square-planar geometry. The Na+ ion is six-coordinated by four O atoms from the two ligands and two F atoms of two tetrafluoridoborate anions. The tetrafluoridoborate anion links the Na+ ions, forming a one-dimensional structure along [001]. Three F atoms of the tetrafluoridoborate anion are disordered over two sets of sites, with an occupancy ratio of 0.790 (11):0.210 (11).
organic compounds
Open access
The title compound, C10H7N5O2, was synthesized by the reaction of 4-nitroaniline and 2,3-dicyanopropionic acid ethyl ester. In the crystal, N—HO and C—HO hydrogen bonds link the molecules, forming a three-dimensional network.
organic compounds
Open access
In the crystal structure of the title compound, C33H39N3O10·C3H6O, the acetone molecule is encapsulated into the cavity of the cryptand and fixed by two N—HO and one C—HO hydrogen bond. C—HO and C—HN interactions link neighbouring cryptands. The dihedral angles between the pyridine ring and the benzene rings are 86.47 (17) and 85.53 (13)°.
organic compounds
Open access
In the title compound, C10H8N2·C4H8N2O2, both the dimethylglyoxime and the 4,4′-bipyridine molecules have crystallographic Ci symmetry. The molecules stack along the a-axis direction with a dihedral angle of 20.4 (8)° between their planes. In the crystal, the components are linked by O—HN hydrogen bonds into alternating chains along [120] and [10].