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The solution reaction of 4-amino-3,5-bis(4-pyridyl)-1,2,4-triazole (bpt), benzene-1,2,4,5-tetracarboxylic acid (H4betc) and Co(NO3)2·6H2O led to the formation of the title cocrystal compound Hbpt·H3betc or C12H11N6+·C10H5O8-, in which strong hydrogen-bonding interactions assemble the ions into a three-dimensional supramolecular framework. [ABSTRACT FROM AUTHOR]

Hydro­thermal reaction of Zn(NO3)2·6H2O with pyridine-2,5-dicarboxylic acid, 4,4′-bipyridine and pyridine in a 1:1:1:2 molar ratio affords the title complex, (C10H10N2)[Zn(C7H3NO4)2(H2O)2], in which both ions are centrosymmetric. The ZnII atom is octahedrally coordin­ated by two pyridine-2,5-dicarboxyl­ate chelating ligands and two water mol­ecules in a distorted octa­hedral geometry. 4,4′-Bipyridinium, acting as counter-ion, has hydrogen-bonding inter­actions with pyridine-2,5-dicarboxyl­ate, forming a three-dimensional structure. [ABSTRACT FROM AUTHOR]

The reaction of 3,5-diamino­benzoic acid, 1,10-phenanthroline, NaN3 and ZnII in basic aqueous solution gave rise to the title compound, [Zn(C7H7N2O2)(N3)(C12H8N2)(H2O)2]·H2O. The ZnII atom is six-coordinate with a distorted octa­hedral geometry. The two aqua ligands are in cis positions and the 3,5-diamino­benzoate ligand binds to the central Zn atom through one of its amino groups. [ABSTRACT FROM AUTHOR]

In the trinuclear nickel(II) complex of the title compound, [Ni3(C30H20N4O6)2(C5H5N)2(C2H6NO)2]·2C3H7NO·0.5H2O, the central Ni2+ ion is located on an inversion centre. This Ni2+ ion has a distorted octahedral coordination geometry involv­ing two N and two O atoms from the 2′-salicyl­benzo­hydrazidate ligands in the equatorial plane and two N atoms from two di­methyl­form­amide molecules in the axial positions. The inversion-related outer Ni2+ ions, separated by 9.3038 (7) Å, have square-planar coordination environments. [ABSTRACT FROM AUTHOR]

The VV ion in the title complex, [V(C15H12N2O4)(C3H7O)O], is in a distorted square-pyramidal environment. Two O atoms and one N atom from the tridentate hydrazidate ligand, and an O atom from the depronated solvent mol­ecule, define the basal plane, and the oxo O atom occupies the apical position. [ABSTRACT FROM AUTHOR]

The solution reaction of Zn2+ with 5-aminoisoquinoline and NaN3 afforded the mononuclear title complex, [Zn(N3)2(C9H8N2)2]. The azide anions and the 5-aminoisoquinoline molecules act as monodentate ligands, resulting in a slightly distorted ZnN4 tetrahedron. A network of weak N—H...N hydrogen bonds helps to consolidate the crystal packing. [ABSTRACT FROM AUTHOR]

In the title complex, [Mn(N3)(C10H8N2)2(H2O)]ClO4, each Mn atom is surrounded by one O atom from an aqua ligand, one N atom from an azide anion and four N atoms from 2,2′-bipyridine ligands to form a distorted octa­hedral geometry. In the complex, the perchlorate anion acts as a counter-ion to balance the charge. [ABSTRACT FROM AUTHOR]

The solution reaction of FeII with 1,10-phenanthroline and NaN3 affords the title complex, [Fe(N3)2(C12H8N2)2]. In this complex, the central atom adopts a six-coordinate octahedral geometry, with monodentate azide ligands occupying the cis sites and two phenanthroline ligands occupying the other four sites, forming a cis isomer. [ABSTRACT FROM AUTHOR]

The hydrothermal reaction of 2,6-ditriazol-4-ylpyridine, benzene-1,2,4,5-tetracarboxylic acid and ZnSO4·7H2O led to the formation of the cocrystal compound 2,6-ditriazol-4-ylpyridine–benzene-1,2,4,5-tetracarboxylic acid (2/1), 2C9H7N7·C10H6O8, in which hydrogen-bonding and π–π stacking interactions (3.404 Å) assemble the molecules into a three-dimensional supramolecular framework. The acid molecule lies on an inversion centre. [ABSTRACT FROM AUTHOR]

In the mol­ecule of the title compound, C11H11F4NO2, the amide plane is oriented with respect to the planar aromatic ring at a dihedral angle of 19.5 (3)°. In the crystal structure, the mol­ecules are linked firstly into centrosymmetric dimers, and then into infinite chains by inter­molecular N—H⋯O and O—H⋯O hydrogen bonds, respectively. [ABSTRACT FROM AUTHOR]

Reaction of 2,4,6-tris­(4-pyrid­yl)-1,3,5-triazine (tpt) with excess nitric acid in an aqueous solution affords the title compound, C18H15N63+·3NO3−. The torsion angles between adjacent aromatic rings are much larger than those of neutral tpt. All three pyridine N atoms are protonated. [ABSTRACT FROM AUTHOR]

In the title compound, [Cu(C4H5NO4)(C10H8N2)(H2O)]·5H2O, the CuII atom is coordinated by an N, O-bidentatel-aspartate dianion, a bipyridine ligand and a water mol­ecule in a distorted square-pyramidal geometry. Inter­molecular hydrogen bonds involving the non-coordinated water mol­ecules help to consolidate the crystal packing. [ABSTRACT FROM AUTHOR]