journal menu
metal-organic compounds
Open 
access
access
The asymmetric unit of the title compound, [Ni2(C10H2O8)(C12H8N2)2(H2O)4]·0.67H2O, contains one complete binuclear complex and one half-molecule, the latter being completed by crystallographic inversion symmetry, and 0.67 of a solvent water molecule. Each Ni2+ cation is coordinated by a 1,10-phenanthroline ligand, a bidentate benzene-1,2,4,5-tetracarboxylate (btec) tetra-anion and two water molecules to generate a distorted cis-NiN2O4 octahedral coordination geometry. The btec species bridges the metal ions. In the crystal, the clusters and uncoordinated water molecules are linked by O—H
O hydrogen bonds and π–π interactions [shortest centroid–centroid separation = 3.596 (2) Å] to form a three-dimensional network.
O hydrogen bonds and π–π interactions [shortest centroid–centroid separation = 3.596 (2) Å] to form a three-dimensional network.organic compoundsOpen access
access
The title compound, C23H18ClN3O, exists in an enamine–keto form with the amino group involved in an intramolecular N—HO hydrogen bond. The five-membered ring is nearly planar, the largest deviation being 0.0004 (7) Å, and makes dihedral angles of 16.62 (6), 41.89 (5) and 71.27 (4)° with the phenyl rings. In the crystal, weak C—HO hydrogen bonds link the molecules into supramolecular chains along the b axis.
O hydrogen bond. The five-membered ring is nearly planar, the largest deviation being 0.0004 (7) Å, and makes dihedral angles of 16.62 (6), 41.89 (5) and 71.27 (4)° with the phenyl rings. In the crystal, weak C—HO hydrogen bonds link the molecules into supramolecular chains along the b axis.
