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The title compound, (C3H5N2)2[NiNa2Mo6O18(OH)6]·2H2O, features inversion-generated hexa­molybdonickelate anions (Ni site symmetry ). The anions are linked by the octa­hedrally coordinated sodium cations into a three-dimensional network containing one-dimensional channels. The imidazolium cations are embedded in the channels and inter­act with the inorganic framework by way of N—H⋯O hydrogen bonds. [ABSTRACT FROM AUTHOR]

In the title compound, [Zn(C4H2O4)(C14H8N4)]n, the ZnII atom is five-coordinate and exhibits a distorted trigonal-bipyramidal coordination. The ZnII atoms are further bridged by fumarate ligands, forming a two-dimensional network parallel to the ab plane. [ABSTRACT FROM AUTHOR]

In the title complex, [Cu2(C8H4O4)2(C6H6N2O)4]·3H2O, the CuII atom exhibits distorted trigonal–bipyramidal geometry and is coordinated by two N atoms of two isonicotinamide (inta) ligands and three O atoms of three isophthalate (ipt) ligands. C—H⋯O and N—H⋯O hydrogen bonds, as well as π–π stacking inter­actions, are observed between. [ABSTRACT FROM AUTHOR]

In the title complex, [Cd2(C24H26N4O2)(ClO4)2(H2O)2][Cd2(C24H26N4O2)(H2O)2](ClO4)2, the two distinct macrocycles adopt essentially flat structures. They each encapsulate two Cd atoms. One Cd coordination polyhedron, completed by a water O atom and a perchlorate O atom, is distorted octa­hedral, while the other is best described as a CdN2O3 square-based pyramid, with water in the apical site. Both dinuclear complexes are centrosymmetric. [ABSTRACT FROM AUTHOR]

In the title compound, [Co(C6H6N2O)2(H2O)4](C8H4O4)·2H2O, the CoII atom (site symmetry ) exhibits a slightly distorted trans-CoN2O4 octa­hedral coordination geometry arising from two N-bonded isonicotinamide mol­ecules and four O atoms of water mol­ecules. The uncoordinated centrosymmetric terephthalate anion and uncoordinated water mol­ecules inter­act with the cation by way of O—H⋯O and N—H⋯O hydrogen bonds, generating a three-dimensional network. [ABSTRACT FROM AUTHOR]

In the mol­ecule of the title compound, C18H20N4, the cyclo­hexane ring has a chair conformation. The dihedral angle between the two planar pyridine rings is 68.19 (3)°. [ABSTRACT FROM AUTHOR]

In the title compound, [Cd(C8H4O4)(C7H6N2)2] n, the Cd atom is coordinated by four O atoms from two different benzene-1,4-dicarboxyl­ate (bdc) ligands and two N atoms from two different benzimidazole ligands. The bdc ligands bridge the Cd atoms to form a one-dimensional zigzag chain structure. [ABSTRACT FROM AUTHOR]

In the title compound, [Eu(C8H6NO2)3(H2O)]n, the europium(III) ion is coordinated by eight carboxylate O atoms and one water molecule. The carboxylate ligands bridge pairs of europium(III) ions, forming a zigzag chain along [100]; hydrogen bonds link the chains into sheets parallel to (001). [ABSTRACT FROM AUTHOR]

In the title compound, {[Cu(C14H8O5)(C14H8N4)]·H2O} n, the CuII atom adopts a distorted cis-CuN2O2 square-planar coordination geometry. 4,4′-Oxydibenzoate ( L) ligands link the CuII atoms, generating a helical chain. Neighbouring chains are linked through π–π interactions between pyrazino[2,3- f][1,10]phenanthroline ligands with a centroid–centroid distance of ca 3.44 Å, resulting in a two-dimensional supramolecular structure. The structure is completed by O—H...O hydrogen bonds. [ABSTRACT FROM AUTHOR]

In the title compound, [Cd(C12H10O4)(H2O)2], each CdII atom lies on a crystallographic twofold rotation axis and is six-coordinated by four carboxylate O atoms from two different 3,3′-( p-phenylene)diacrylate ligands, and two cis water molecules in a very distorted octahedral CdO6 environment. Each 3,3′-( p-phenylene)diacrylate dianion is centrosymmetric and acts as a bis-chelating ligand that binds two CdII atoms, thus forming a zigzag chain. The chain is decorated with water molecules and O—H...O hydrogen bonds link the chains together, forming a three-dimensional supramolecular structure. [ABSTRACT FROM AUTHOR]

In the title molecule, C17H14O4, all non-H atoms are essentially coplanar. The crystal structure is stabilized by weak intermolecular C—H...O hydrogen bonds. [ABSTRACT FROM AUTHOR]

In the title compound, [Zn2(C8H4O4)(C7H5N2)2] n, the Zn atom is four-coordinated by two O atoms from two benzene-1,3-dicarboxylate (1,3-BDC) ligands and two N atoms from two anionic benzimidazolate (bzim) ligands, resulting in a ZnN2O2 tetrahedron. The complete 1,3-BDC ligand is generated by crystallographic twofold rotation symmetry, with two C atoms lying on the rotation axis. Together, the 1,3-BDC and bzim ligands bridge the Zn atoms, forming an infinite three-dimensional structure containing one-dimensional channels. [ABSTRACT FROM AUTHOR]

In the title compound, [Cu(C19H11N4)2(H2O)]·2H2O or [Cu( L)2(H2O)]·2H2O, where H L is 2-phenyl-1 H-1,3,7,8,-tetra­azacyclo­penta­[ l]phenanthrene, the CuII atom is five-coord­inated by four N atoms from two L− ligands and one O atom from one water mol­ecule. A three-dimensional supra­molecular structure is formed through π–π and hydrogen-bonding inter­actions. [ABSTRACT FROM AUTHOR]

The title compound, C34H22BrN, was synthesized by N-alkyl­ation of 7-bromo-3-(4-bromo­phen­yl)-1-phenyl­naph­thalene with 9 H-carbazole. The carbazole ring system is essentially planar and makes a dihedral angle of 48.63 (9)° with the plane of the adjacent benzene ring. [ABSTRACT FROM AUTHOR]

The title complex, [HgBr2 L] [ L is 1,4-bis­(ethyl­sulfanyl)butane, C4H9S], has a dinuclear structure in which one L ligand links two HgBr2 units. A C2 symmetry axis passes through the centre of the ligand L. The HgII centre adopts a slightly distorted trigonal planar geometry coordinated by two Br− anions and one S atom from L. When two weak Hg—Br interactions are considered, the dinuclear structure expands into a two-dimensional layer containing [HgBr2] n chains, with the HgII ion having a trigonal–bipyramidal geometry and the Br− anion acting as a μ2 linkage. [ABSTRACT FROM AUTHOR]

The title complex, [Hg2Br4(C18H22S2)] n, has a chain structure. Two bridging Br atoms and two terminal Br atoms coordinate to two HgII atoms to form a (HgBr2)2 dimer, and the 1,4-bis­(benzyl­sulfan­yl)butane ligands bridge the (HgBr2)2 dimers to form a one-dimensional chain. The dimer and butane ligand are each located on inversion centers. HgII adopts a tetra­hedral geometry formed by three Br and one S atoms. [ABSTRACT FROM AUTHOR]

In the original report by Li, Liu, Gao & Che [ Acta Cryst. (2005), E 61, m1705–m1707], the hydrogen-bond D⋯ A parameters were published without their associated s.u. values. The correct Table is given below. [ABSTRACT FROM AUTHOR]

In the title compound, [Zn(1,4-BDC)(L)]n, where 1,4-BDC is the benzene-1,4-dicarboxylate dianion, C7H3O4N2-, and L is dipyrido[3,2-a:2',3'-c]-phenazine, C18H10N4, each ZnII atom is five-coordinated by two N atoms (from one dipyrido[3,2-a:2',3'-c]phenazine ligand) and three O atoms (from two monodentate benzene-1,4-dicarboxylate ligands and one water molecule). The ZnII atoms are bridged by benzene-1,4-dicarboxylate ligands, forming a one-dimensional chain structure. Neighboring one-dimensional chains interact through π-π contacts, leading to a two-dimensional supramolecular structure, and O—H…O hydrogen bonds complete the structure. [ABSTRACT FROM AUTHOR]

The title compound, C28H22O2, is a inter­mediate in the synthesis of 10,10′-dibromo-9,9′-bianthracen­yl. The mol­ecule forms both intra- and inter­molecular O—H⋯O hydrogen bonds. [ABSTRACT FROM AUTHOR]

The article focuses on the crystallization of the compound dimethyl (Z,Z)-3,3'-(propane-1,2-diyldiimino)dibut-2-enoate. The compound formed is a novel intermediate in the synthesis of related heterocycles. The molecular structure of the compound has a conformation involving a twist of two moieties. In the experiment methyl acetoacetate and water were mixed. 1,2-propanediamine was added to the mixture. Recrystallization was done from ethyl acetate.

The asymmetric unit of the title compound, C14H13N3O3·H2O, consists of one 4-hydr­oxy-3-methoxy­benzaldehyde nicotinoylhydrazone (NAHZ) mol­ecule and one water mol­ecule linked through hydrogen bonds. [ABSTRACT FROM AUTHOR]

In the title compound, [Co(C10H7NO2)2(H2O)2], the CoII ion lies on an inversion centre. It has a distorted octa­hedral geometry and is coordinated by two N, O-bidentate 5-phenyl-1 H-pyrazole-3-carboxyl­ate ligands and two water mol­ecules. Inter­molecular O—H⋯O and N—H⋯O hydrogen bonds link mol­ecules into layers parallel to the (010) plane. [ABSTRACT FROM AUTHOR]

In the title compound, [Fe2(SO4)2(C18H10N4)2(H2O)4]·H2O, the FeII atoms are octa­hedrally coordinated by two N atoms from one bidentate dipyrido[3,2-a:2′,3′-c]phenazine (dppz) ligand, two O atoms belonging to two SO42− anions and two water O atoms. The two crystallographically independent dinuclear complex mol­ecules are both generated by inversion symmetry with the sulfate ions acting as bridges. Neighbouring dinuclear complexes inter­act via O—H⋯O hydrogen bonds, leading to a chain structure. [ABSTRACT FROM AUTHOR]

The title compound, C31H39NO, was prepared by the condensation of 5- tert-butyl-2-hydroxy-3-(1-phenylethyl)benzaldehyde with 2,6-diisopropylphenylamine in refluxing ethanol. The phenol ring and the phenylimino ring are approximately perpendicular, forming a dihedral angle of 81.5 (3)°. The phenyl ring makes a dihedral angle of 75.2 (2)° with the phenol ring and also makes a dihedral angle of 62.9 (3)° with the phenylimino ring. The molecular structure is stabilized by an intramolecular O—H...N hydrogen bond linking the phenol OH group and the phenylimino N atom. One of the isopropyl groups is disordered over two positions; the site occupancies are 0.55 and 0.45. [ABSTRACT FROM AUTHOR]

The title compound, [Cd(C8H4O4)(C18H10N4)] n, was synthesized under mild hydro­thermal conditions. The Cd center is coordinated by four O atoms from three different benzene-1,3-dicarboxyl­ate ligands and two N atoms from the dipyrido[3,2- a:2′,3′- c]phenazine ligand in a distorted octa­hedral geometry. The polymeric chain extends along the c axis, forming a one-dimensional helical structure. [ABSTRACT FROM AUTHOR]