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In the title compound, [Ni(C22H26N2O6)(H2O)2]·1.5H2O, the NiII ion is in a slightly distorted octahedral coordination environment formed by an N2O4 donor set. In the crystal structure, intermolecular O-H⋯O and C-H⋯O hydrogen bonds and C-H⋯π interactions connect molecules into a three-dimensional network. [ABSTRACT FROM AUTHOR]

In the asymmetric unit of the title compound, [Cd(C20H22N2O4)(H2O)2]·2.5H2O, there are five water molecules and two independent mononuclear complex molecules in which the CdII ions are in distorted octahedral coordination environments, defined by N2O4 donor sets. In the crystal structure, extensive hydrogen bonding links molecules into one-dimensional chains along the b axis. [ABSTRACT FROM AUTHOR]

In the title compound, C19H23N2O+·C8H5O4−, the cation and anion are held together by an N—H⋯O hydrogen bond. One-dimensional chains along the [100] direction are formed via O—H⋯O hydrogen bonds. The chains associate by O—H⋯N and C—H⋯O hydrogen bonds to form the complete structure. [ABSTRACT FROM AUTHOR]

In the crystal structure of the title compound, C20H20N2O4, the mol­ecules are linked by a weak inter­molecular C—H⋯N hydrogen bond. The molecule has crystallographic twofold rotation symmetry. [ABSTRACT FROM AUTHOR]

In the title complex, [Cu(C20H20N4O8)(H2O)], the Cu atom has a distorted trigonal–bipyramidal coordination environment defined by an N2O3 donor set; the Cu and water O atoms lie on a twofold axis. In the crystal structure, extensive hydrogen bonding links mol­ecules into a two-dimensional network. [ABSTRACT FROM AUTHOR]

The title mol­ecule, C11H9FN2O, was synthesized from 3,6-difluoro­pyridazine, benz­yl alcohol and sodium hydro­xide in CH3CN under reflux. The asymmetric unit contains two independent mol­ecules with nearly identical geometry. In the crystal structure, the mol­ecules are linked by weak inter­molecular C—H⋯F hydrogen bonds and C—H⋯π inter­actions. [ABSTRACT FROM AUTHOR]

The title nitrogen-donor heterocyclic ligand, C25H22N4O2, contains a central (1,2,4-triazine) and three attached (two phenyl and a pyridine) rings, all of them having normal bond lengths and angles. The rings are not coplanar, but make dihedral angles with the central triazine ring of 35.96 (6) and 38.49 (8)° (phenyl groups) and 24.92 (3)° (pyridine). [ABSTRACT FROM AUTHOR]

The title compound, C25H20N6O3·CHCl3, a rigid glycoluril derivative, is an intermediate for the synthesis of molecular tweezers. The crystal structure is stabilized by intermolecular C—H...O and N—H...O hydrogen bonds. The chloroform solvent molecule is disordered over two positions; the site occupancy factors are ca 0.89 and 0.11. [ABSTRACT FROM AUTHOR]

The title compound, C15H17N7OS, is a new heterocyclic compound and this is the first time its synthesis has been reported. The compound, which contains a 1,2,4-triazole ring, a pyridine ring and a pyrazole ring, has potential biological activity and pharmacological properties. Molecules are linked by intermolecular N—H...N hydrogen bonds. [ABSTRACT FROM AUTHOR]

In the title complex, [Cd(C22H26N2O6)(C3H4N2)2]·2H2O, the Cd atom is in a distorted octahedral coordination environment. In the crystal structure, intermolecular hydrogen bonding links molecules into infinite one-dimensional chains. The atoms of one 4-methoxybenzyl group are disordered over two sites in approximately a 0.54:0.46 ratio. [ABSTRACT FROM AUTHOR]

In the title complex, [Ni(C22H26N2O4)(C3H4N2)2], the Ni atom is in a distorted octahedral coordination environment defined by an N4O2 donor set. The asymmetric unit consists of two half-molecules; each Ni atom lies on a crystallographic twofold rotation axis. In the crystal structure, hydrogen bonds link two kinds of coordination geometry around the Ni atom. [ABSTRACT FROM AUTHOR]

The CoIII atom in the title compound, [Co(C2H8N2)2(OH)(H2O)](C10H6O6S2)·H2O, exhibits an octa­hedral coordination geometry, with the hydroxide and water ligands occupying cis sites. Adjacent cations are linked into linear chains through hydrogen-bonded OH⋯OH2 units. The CoIII atom lies on a twofold rotation axis and the naphthalene-1,5-disulfonate dianion lies on a centre of inversion. [ABSTRACT FROM AUTHOR]

In the title salt, C19H24N2O2+·2C7H7SO3−·H2O, the ions and the water mol­ecule are held together by O—H⋯O, N—H⋯O and C—H⋯O hydrogen bonds, forming hydrogen-bonded layers; there are no hydrogen bonds between layers. [ABSTRACT FROM AUTHOR]

In the title crystal structure, C19H24N2O2+·2ClO4−, cations and anions are connected by inter­molecular O—H⋯O and N—H⋯O hydrogen bonds, forming one-dimensional chains propagating in the the a-axis direction. These chains are, in turn, linked by weak C—H⋯O hydrogen bonds, forming a three-dimensional network. [ABSTRACT FROM AUTHOR]

The title salt, C8H20NO5+·C7H4NO4−·H2O, is composed of a 4-nitro­benzoate anion, a [2-hydr­oxy-1,1-bis­(hydroxy­meth­yl)eth­yl]bis­(2-hydroxy­ethyl)ammonium (NBHHP) cation and a water mol­ecule. The three units are linked by O—H⋯O hydrogen bonds. [ABSTRACT FROM AUTHOR]

In the crystal structure of the title compound, C6H4Br2ClN, all atoms but Br are located on a crystallographic mirror plane. The crystal packing is stabilized by offset π–π stacking. [ABSTRACT FROM AUTHOR]

In the crystal structure of the title compound, C6H12N4·C8H14O2, neutral mol­ecules of urotropine and 2,2,3,3-tetra­methyl­cyclo­propane­carboxylic acid are linked together by an O—H⋯N hydrogen bond. [ABSTRACT FROM AUTHOR]

The title compound, C23H21Cl2NO, was prepared by condensation of 1,2,3,4-tetra­hydro­naphthalen-1-amine with (3,5-dichloro-2-hydroxy­phen­yl)(phen­yl)methanone. There is an intra­molecular O—H⋯N hydrogen bond and mol­ecules are linked via N—H⋯Cl hydrogen bonds, forming centrosymmetric dimers in the crystal structure. [ABSTRACT FROM AUTHOR]

In the title mol­ecule, C25H21Cl1N4O6, all bond lengths and angles show normal values. Weak inter­molecular C—H⋯Cl hydrogen bonds link the mol­ecules into chains extending along the crystallographic c axis. The crystal packing is further stabilized by van der Waals forces. [ABSTRACT FROM AUTHOR]

The title compound, C15H12ClNO5, was synthesized by the reaction of ethyl 4-hydroxy­benzoate and 1,2-dichloro-4-nitro­benzene in the presence of potassium hydroxide. In the V-shaped mol­ecule, the dihedral angle between the two benzene rings is 72.90 (5)°. [ABSTRACT FROM AUTHOR]