Hexanuclear copper(II) complex of 2-hy-droxy-,'-bis-[1-(2-hy-droxy-phen-yl)ethyl-idene]propane-1,3-di-amine incorporating an open-cubane core.

The title mol-ecular structure, namely, di-aqua-tris-(μ-1,3-bis-{[1-(2-oxidophen-yl)ethyl-idene]amino}-propan-2-olato)-μ-hydroxido-dinitrato-hexa-copper(II) ethanol tris-olvate, [Cu(CHNO)(NO)(OH)(HO)]·3CHOH, corres-ponds to a non-symmetric hexa-nuclear copper complex. The complex exhibits one core in which three Cu metal centres are mutually inter-connected, two by two, three phenolato oxygen anions acting in a μ-mode. These three copper cations are inter-connected in a μ-mode by one hydroxyl group.

1,5-Bis(2-hy-droxy-3-meth-oxy-benzyl-idene)carbonohydrazide methanol 0.47-solvate.

In the title compound, C17H18N4O5·0.47CH3OH, the virtually planar (r.m.

Aqua-{2-(pyridin-2-yl)-N-[(pyridin-2-yl)methyl-idene]ethanamine-κ(3) N,N',N''}(sulfato-κ(2) O,O')copper(II) tetra-hydrate.

The title complex, [Cu(SO4)(C13H13N3)(H2O)]·4H2O, was obtained by mixing copper sulfate penta-hydrate and 2-(pyridin-2-yl)-N-(pyridin-2-yl-methyl-idene)ethanamine in eth-anol under reflux conditions. The Cu(II) ion shows a Jahn-Teller-distorted octa-hedral geometry, with equatorial positions occupied by three N atoms from the tridentate ligand (average Cu-N = 2.004 Å) and one O atom from a bidentate sulfate anion [Cu-O = 1.

Bis(2-{[2-(2-hy-droxy-benzyl-amino)-eth-yl]amino-meth-yl}phenolato-κN,N',O)cobalt(III) nitrate monohydrate.

In the title compound, [Co(C(16)H(19)N(2)O(2))(2)]NO(3)·H(2)O, the Co(III) ion is located on an inversion center and is six-coordinated by two phenolate O atoms and four amino N atoms from two diamine ligands, forming an octa-hedral geometry. The water mol-ecule and the nitrate anion are located close to an inversion center, and are thus equally disordered by symmetry. The crystal packing is stabilized by inter-molecular O-H⋯O hydrogen bonds involving the uncoordinated water mol-ecule and the free phenol hydroxyl group with the nitrate anion.

3,3'-Dibenzoyl-1,1'-(3,6-dioxaoctane-1,8-di-yl)dithio-urea.

In the mol-ecule of the title compound, C(22)H(26)N(4)O(4)S(2), the central O-CH(2)-CH(2)-O chain adopts a synclinal conformation [torsion angle = 65.0 (2)°]. The crystal structure is stabilized by intra-molecular N-H⋯O=C and inter-molecular N-H⋯O-C hydrogen bonds.