Diaqua­{6,6′-dimeth­oxy-2,2′-[ethane-1,2-diylbis(nitrilo­methyl­idyne)]diphenolato-κ2 O,N,N′,O′}manganese(III) perchlorate 18-crown-6 hemisolvate monohydrate

In the cation of the title compound, [Mn(C18H18N2O4)(H2O)2]ClO4·0.5C12H24O6·H2O, the MnIII ion is coordinated by two water O atoms, and two O atoms and two N atoms from the tetradentate 6,6′-dimeth­oxy-2,2′-[ethane-1,2-diylbis(nitrilo­methyl­idyne)]di­phenolate ligand, completing a distorted octa­hedral geometry. One O atom of the 18-crown-6-ether is disordered over two positions with occupancies of 0.70 (2) and 0.30 (2)

{6,6′-Dimeth­oxy-2,2′-[4-bromo-o-phenyl­enebis(nitrilo­methyl­idyne)]diphenolato}nickel(II) methanol solvate

In the title compound, [Ni(C22H17BrN2O4)]·CH3OH, the NiII ion is in a slightly distorted square-planar geometry involving an N2O2 atom set of the tetra­dentate Schiff base ligand. The asymmetric unit contains one nickel complex and one methanol solvent mol­ecule. The dihedral angle between the aromatic ring planes of the central aromatic ring and other two aromatic rings are 10.8 (3) and 6.0 (2)°. The crystal structure is stabilized by inter­molecular C—H⋯O and C—H⋯Br and by intra­molecular O—H⋯O hydrogen bonds

Di-μ-chlorido-bis­[chlorido(N,N-di­methyl­ethylenediamine-κ2 N,N′)zinc(II)]

The centrosymmetric dinuclear title compound, [Zn2Cl4(C4H12N2)2], is isostructural with its previously reported CuII analogue [Phelps, Goodman & Hodgson (1976 ▶). Inorg. Chem. 15, 2266–2270]. In the title compound, each of the ZnII ions is coordinated by two N atoms from a chelating N,N-dimethyl­ethylenediamine ligand, two bridging Cl atoms and one terminal Cl atom. The coordination environment is distorted square-pyramidal. The Zn—Cl bond distances of the two bridging Cl atoms are distinctly different: the equatorial Cl atom exbibits a Zn—Cl distance of 2.318 (1) Å and the axial Cl atom exbibits a Zn—Cl distance of 2.747 (2) Å, which is significantly longer. The mol­ecule can thus be seen as a dimer of two nearly square-planar monomeric units which are related to each other by an inversion center located in the middle of the dimer. Within one monomeric unit, the Zn atom, the two N atoms and the two Cl atoms are almost coplanar, with a mean deviation of only 0.05 (1) Å from the associated least-squares plane. The Zn⋯Zn distance within the dimer is 3.472 (3) Å. N—H⋯Cl and C—H⋯Cl hydrogen-bond inter­actions connect neighboring mol­ecules with each other

Tris(1,10-phenanthroline-κ2 N,N′)iron(II) μ-oxido-bis[trichloridoferrate(III)] ethanol hemisolvate

The title compound, [Fe(C12H8N2)3][Fe2Cl6O]·0.5CH3CH2OH, consists of one [Fe(phen)3]2+ cation (phen = 1,10-phen­anthroline), one [Fe2Cl6O]2− anion and one half-mol­ecule of ethanol. In the cation, the FeII atom is coordinated by six N atoms from three phen ligands in a distorted octa­hedral geometry. In the bent anion, two FeIII atoms are connected by a bridging oxide O atom [bridging angle = 160.6 (4)°], and each FeIII atom is also coordinated by three Cl atoms, completing a distorted tetra­hedral geometry

(E)-2-[(2-Amino-4,5-dibromo­phen­yl)imino­meth­yl]-6-methoxy­phenol

The title compound, C14H12Br2N2O2, was prepared from the condensation of 4,5-dibromo-1,2-phenyl­enediamine and 2-hydr­oxy-3-methoxy­benzaldehyde in methanol. The N=C double bond shows a trans conformation and the dihedral angle between the aromatic ring planes is 5.9 (4)°. In the crystal structure, there are intra­molecular O—H⋯N and N—H⋯N and inter­molecular N—H⋯O hydrogen bonds, the latter resulting in inversion dimers