Bis({1-[(1-imino­eth­yl)imino]­eth­yl}aza­nido-κ²N¹,N⁵)nickel(II) methanol monosolvate

The title compound, [Ni(C₄H₈N₃)₂]·CH₃OH, contains two independent Ni^II atoms, each located on an inversion center and coordinated by four N atoms from two 1-[(1-imino­eth­yl)imino]­eth­yl}aza­nide ligands in a square-planar geometry. N—H...N, N—H...O and O—H...N hydrogen bonds link the complex mol­ecules and methanol solvent mol­ecules into a corrugated layer parallel to (001).

catena-Poly[di-μ₃-bromido-bis­[(1-ethyl-1H-imidazole-κN³)disilver(I)]]

The asymmetric unit of the title coordination complex, [Ag₂Br₂(C₅H₈N₂)₂]_n, comprises a monodentate 1-ethyl­imida­zole ligand, an Ag⁺ cation and a μ₃-bridging Br⁻ anion, giving a distorted tetra­hedral AgNBr₃ stereochemistry about the Ag⁺ cation [Ag—N = 2.247 (2) Å and Ag—Br = 2.7372 (4)–2.7523 (4) Å]. Two bridging bromide anions generate the dimeric [Ag₂Br₂(C₅H₈N)₂] repeat unit [Ag...Ag = 3.0028 (5) Å], while a third Br⁻ anion links the units through corner sharing in an inversion-related Ag₂Br₂ association [Ag...Ag = 3.0407 (4) Å], generating a one-dimensional ribbon step-polymer structure, extending along the c axis.

Bis[μ-1-(3,5-di­chloro­pyridin-2-yl)-2-(pyridin-3-yl­methyl­idene)hydrazine]bis­[(nitrato-κO)silver(I)] aceto­nitrile disolvate

In the centrosymmetric binuclear title complex, [Ag₂(NO₃)₂(C₁₁H₈Cl₂N₄)₂]·2CH₃CN, the Ag^I atom is four-coordinated and exhibits a highly distorted tetrahedral coordination sphere defined by three N atoms from two 1-(3,5-di­chloro­pyridin-2-yl)-2-(pyridin-3-yl­methyl­idene)hy­drazine ligands and one O atom from a nitrate anion. Inter­molecular N—H...O hydrogen bonds link the complex mol­ecules, resulting in a two-dimensional supra­molecular structure parallel to (001).