Aqua-{tris-[(1H-benzimidazol-2-yl-κN)meth-yl]amine}-zinc 5-(dimethyl-amino)-naphthalene-1-sulfonate perchlorate 2.5-hydrate.

In the title compound, [Zn(C(24)H(21)N(7))(H(2)O)](C(12)H(12)NO(3)S)(ClO(4))·2.5H(2)O, the Zn(II) ion is in a distorted trigonal-bipyramidal coordination geometry. In the crystal, N-H⋯O and O-H⋯O hydrogen bonds connect the components into a two-dimensional network parallel to (001). In addition, there are weak C-H⋯O hydrogen bonds.

(Nitrato-κO){N,N,N',N'-tetra-kis-[(1H-benzimidazol-2-yl-κN)meth-yl]cyclo-hexane-1,2-diamine}-lead(II) hemiaqua-{N,N,N',N'-tetra-kis-[(1H-benzimidazol-2-yl-κN)meth-yl]cyclo-hexane-1,2-diamine}-lead(II) trinitrate dihydrate.

In the title compound, [Pb(NO(3))(C(38)H(38)N(10))][Pb(C(38)H(38)N(10))(H(2)O)(0.5)](NO(3))(3)·2H(2)O, both Pb(II) ions are coordinated in a distorted trigonal-prismatic environment by a hexa-dentate N,N,N',N'-tetra-kis-[(1H-benzimidazol-2-yl)meth-yl]cyclo-hex-ane-1,2-diamine ligand. A nitrate and a half-occupancy water ligand form long coordination bonds to the Pb(II) ions capping the trigonal-prismatic environment. In the crystal, the components are linked by N-H⋯O and O-H⋯O hydrogen bonds, forming a three-dimensional network. C-H⋯O inter-actions also occur.

4-[1-(4-Hy-droxy-3-meth-oxy-benz-yl)-1H-benzimidazol-2-yl]-2-meth-oxy-phenol.

In the title mol-ecule, C(22)H(20)N(2)O(4), the dihedral angles between the benzimidazole ring system and the benzene rings are 44.26 (2) and 82.91 (2)°. Intra-molecular O-H⋯O hydrogen bonds occur. In the crystal, O-H⋯N and O-H⋯O hydrogen bonds connect the mol-ecules into a two-dimension network parallel to (10[Formula: see text]) and weak inter-molecular C-H⋯O hydrogen bonds complete the formation of a three-dimensional network.

Dichlorido[tris-(benzimidazol-2-ylmeth-yl)amine]-indium(III) chloride ethanol solvate dihydrate.

In the title complex, [InCl(2)(C(24)H(21)N(7))]Cl·C(2)H(5)OH·2H(2)O, the In(III) ion is coordinated by four N atoms from the tris-(benz-imidazol-2-ylmeth-yl)amine (NTB) ligand and two Cl atoms in a distorted octa-hedral environment. In the crystal structure, inter-molecular N-H⋯O, O-H⋯O, O-H⋯Cl and weak C-H⋯Cl hydrogen bonds connect the cations, anions and solvent mol-ecules into a three-dimensional network. The ethanol solvent mol-ecule is disordered over two sites with refined occupancies of 0.54 (2) and 0.46 (2).

8-Quinolyl 5-(dimethyl-amino)-naphthalene-1-sulfonate.

In the title compound, C(21)H(18)N(2)O(3)S, the dihedral angle between the naphthalene and quinoline ring systems is 55.53 (2)°, and the torsion angle involving the connecting C-S-O-C atoms is 87.60 (3)°. In the crystal structure, weak inter-molecular C-H⋯O hydrogen bonds connect mol-ecules into chains along [100] and there are π-π stacking inter-actions between pairs of chains with a centroid-centroid distance of 3.5485 (15) Å.

[N,N,N',N'-Tetra-kis(benzimidazol-2-yl-meth-yl)ethane-1,2-diamine]copper(II) sulfate monohydrate.

In the title compound, [Cu(C(34)H(32)N(10))]SO(4)·H(2)O, the Cu(II) ion is coordinated by six N atoms of a hexa-dentate N,N,N',N'-tetra-kis(benzimidazol-2-ylmeth-yl)ethane-1,2-diamine (EDTB) ligand, in a distorted octa-hedral environment. In the crystal structure, inter-molecular N-H⋯O and weak C-H⋯O hydrogen bonds connect the cations, anions and water mol-ecules into a three-dimensional network. The O atoms of the anion are disordered over two sites with refined occupancies of 0.711 (2) and 0.289 (2).

5-(Dimethyl-ammonio)naphthalene-1-sulfonate dihydrate.

There are two formula units in the asymmetric unit of the title compound, C(12)H(13)NO(3)S·2H(2)O. In the crystal structure, mol-ecules are linked by inter-molecular O-H⋯O, N-H⋯O and weak C-H⋯O hydrogen bonds, forming a three-dimensional network.

[N,N,N',N'-Tetra-kis(benzimidazol-2-yl-meth-yl)cyclo-hexane-1,2-diamine]-nickel(II) dinitrate dihydrate.

In the title compound, [Ni(C(38)H(38)N(10))](NO(3))(2)·2H(2)O, the Ni(II) ion is located on a crystallographic twofold rotation axis and is in a distorted octa-hedral coordination environment. The crystal structure is stablized by inter-molecular N-H⋯O and C-H⋯O hydrogen bonds, and weak C-H⋯π inter-actions. The O atoms of the unique nitrate ion are disordered over two sites with occupancies of 0.63 (1) and 0.37 (1). In addition, the O atom of the unique solvent water mol-ecule is disorded over two sites with equal occupancies.