metal-organic compounds
Open access
The title compound, [ZnCl2(C21H15N3)], was obtained from the reaction of ZnCl2·4H2O with 4′-phenylterpyridine (L) and disodium 2,6-dipicolinate. The Zn2+ cation is ligated by the N atoms of the tridentate L ligand and two chloride anions, forming a ZnN3Cl2 polyhedron with a distorted trigonal–bipyramidal coordination geometry. In the crystal, nonclassical C—HCl hydrogen bonds are observed.
metal-organic compounds
Open access
In the title CuI compound, [Cu(C6H5N5)(C18H15P)2]BF4, the CuI cation is N,N′-chelated by a 5-(pyridin-2-yl)-1H-tetrazole ligand and coordinated by two triphenylphosphane ligands in a distorted tetrahedral geometry. The tetrazole and pyridine rings are essentially coplanar [dihedral angle = 4.1 (3)°]. The tetrafluoridoborate anion links to the complex cation via an N—HF hydrogen bond.
organic compounds
Open access
The title compound, C19H19N7O5, exhibits substitutional disorder of the ortho-nitro and cyano groups, with site-occupancy factors of 0.686 (7):0.314 (7). The two aromatic rings are essentially coplanar, with a dihedral angle of 6.6 (5)°. In the diethylamino group, the two ethyl groups lie on the same side of the aminobenzene plane. An intramolecular N—HN hydrogen bond links the amino and diazenyl groups.