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metal-organic compounds
In the title compound, [Ce(C6H4NO2)3(C12H8N2)2(H2O)2]·3H2O, the CeIII atom shows a capped trigonal prismatic N4O5 coordination. The Ce—O and Ce—N bond distances are 2.390 (2)–2.517 (2) and 2.730 (3)–2.752 (3) Å, respectively.
metal-organic compounds
The benzene-1,2,4-tricarboxylate trianion in the polymeric title compound, [Cd3(C9H3O6)2(C10H8N2)2(H2O)2]n, uses the carboxylate groups in the 1,2-positions to chelate to a bipyridine-chelated Cd atom, which is simultaneously chelated by the 4-CO2 group of an adjacent trianion. The O atoms of the 1,2-CO2 groups that are not involved in chelation to the first Cd atom are each bonded to water-coordinated Cd atoms that lie on centres of inversion. The trianion links the Cd atoms to form a three-dimensional network structure, which is further consolidated by hydrogen bonds involving the water molecules.
metal-organic compounds
The pyromellitate tetraanion in the title polymeric complex, [Zn2(C10H2O8)(C12H8N2)2(H2O)2]n, uses only one O atom from each carboxylate group to bind to one Zn atom, which is also chelated by the heterocycle; the fifth coordination site of the trigonal bipyramid around the Zn atom is occupied by a water molecule. The ribbons are linked by hydrogen bonds into sheets. The pyromellitate tetranion lies on an inversion center.
metal-organic compounds
In the title compound, [Mn(C12H8N6)3](ClO4)2·2CHCl3, the MnII ion is chelated by three 1,10-phenanthroline molecules in a twisted octahedral coordination geometry. In the crystal structure, there are intermolecular π–π interactions between adjacent phenanthroline rings.
metal-organic compounds
The title complex, {[Sr(C7H5O6S)2(H2O)4]·2H2O}n, exists as a ladder chain of SrII ions connected by 3-carboxy-4-hydroxybenzenesulfonate anions through μ2-sulfonate and carboxyl groups, and solvent water molecules, forming a three-dimensional hydrogen-bonded framework. The SrII ion exhibits a distorted square antiprismatic coordination geometry defined by three O atoms of two sulfonate groups, one carboxyl O and four water molecules. The 3-carboxy-4-hydroxybenzenesulfonate anions show two types of coordination to strontium, viz. μ2-sulfonate + monodentate-carboxyl bridging and monodentate sulfonate–O coordination.
organic compounds
The molecular structure of the title compound, C18H22O2S2, exhibits an R,S configuration for the S atoms. The molecule sits on a centre of symmetry located at the midpoint of the central C-C bond. The C and S atoms between the two phenyl rings are essentially coplanar and make a 87.3 (3)° dihedral angle with the phenyl ring planes.
organic compounds
In the title molecule, C23H25NO, the hydroxy H atom is involved in the formation of an intramolecular O—H
N hydrogen bond. The dihedral angle between the benzene ring and the 2-naphthol system is 78.1 (1)°. The crystal packing is stabilized by van der Waals forces.
N hydrogen bond. The dihedral angle between the benzene ring and the 2-naphthol system is 78.1 (1)°. The crystal packing is stabilized by van der Waals forces.metal-organic compounds
In the title compound, [Ni(C14H12N4)2](ClO4)2·2CHCl3, each of the two crystallographically independent nickel(II) complex molecules lies on a twofold axis. In each case, the NiII atom is coordinated by the six N atoms of two 2-[3-(2-pyridyl)pyrazol-1-ylmethyl]pyridine ligands in a distorted octahedral geometry. The Ni-Npyrazole bond lengths [1.977 (3)-1.997 (4) Å] are appreciably shorter than the Ni-Npyridine bond lengths [2.133 (4)-2.184 (4) Å].
