forthcoming articles

The crystal structure of the new orthrhombic ternary boride MgNiB₄ has been determined by the single-crystal method. The MgNiB₄ structure type represents the structure family based on AlB₂ and YCrB₄.

The rich redox chemistry of tetra­oxo­lene ligands is harnessed to synthesize a family of bimetallic com­plexes with phenyl-substituted bridging tetra­oxo­lene and terminal tris­[(pyridin-2-yl)meth­yl]amine ligands.

The crystal structure of the new azo com­pound methyl 2-{2-[(E)-2-oxo-1,2-di­hydro­naphthalen-1-yl­idene]hydrazin-1-yl}benzoate was determined by X-ray diffraction at 173 K. The asymmetric unit is repre­sent­ed in its hydrazoic form. The mol­ecule consists of a benzene ring and a β-naphthol ring which are linked to the hydrazo group and adopts an E conformation with respect to the –N=N– bridge, each mol­ecule has an intra­molecular N—H⋯O hy­dro­gen bond in the crystal.