μ-Piperidine-κ²N:N′-bis­[(3-nitro­benzoato-κO)silver(I)] monohydrate

The title compound, [Ag₂(C₇H₄NO₄)₂(C₄H₁₀N₂)]·H₂O, has two similar dinuclear Ag^I complex molecules, each with a crystallographic inversion center; the asymmetric unit contains half of each molecule and a molecule of water. Each Ag atom in the compound is coordinated by one O atom from a 3-nitro­benzoate anion and one N atom from a piperidine bridge, in a slightly distorted linear geometry.

Bis­[2-(o-tolyl­imino­methyl)­phenolato]copper(II)

The title compound, [Cu(C₁₄H₁₂NO)₂], is a mononuclear copper(II) compound. The Cu^II atom, lying on a centre of symmetry, is four-coordinated by two N atoms and two O atoms from two Schiff base ligands, giving a square-planar geometry.

2-(o-Tolyl­imino­methyl)­phenol

The mol­ecule of the title compound, C₁₄H₁₃NO, is roughly planar and displays a trans configuration with respect to the C=N double bond.

Aqua­(pyridine-κN)(N-salicylideneglycinato-κ³N,O,O′)copper(II)

In both of the two independent mol­ecules of the title compound, [Cu(C₉H₇NO₃)(C₅H₅N)(H₂O)], the copper atom is in a square-pyramidal coordination with the apical site occupied by water. The two mol­ecules are related by a non-crystallographic center of inversion. Hydrogen bonds link symmetry-equivalent mol­ecules into zigzag chains that run along the a axis of the ortho­rhom­bic unit cell.

Bis[bis­(4-amino­pyridine-κN¹)silver(I)] terephthalate deca­hydrate

The Ag^I atom in the title compound, [Ag(C₅H₆N₂)₂]₂(C₈H₄O₄)·10H₂O, shows linear coordination. The cation and centrosymmetric anion inter­act indirectly via the non-coordinated water mol­ecules, to furnish a tightly held three-dimensional structure.

N,N′-Bis(2-nitro­benzylidene)ethyl­ene­diamine

The mol­ecule of the title compound, C₆H₁₄N₄O₄, possesses a crystallographically imposed centre of symmetry. In the crystal packing, the mol­ecules are linked via weak inter­molecular C—H...O hydrogen bonds into a sheet-like structure parallel to the (10) plane.