forthcoming articles

In the crystal structure of the title compound, the cobalt cations are octa­hedrally coordinated by two N- and two S-bonding thio­cyanate anions and two pyri­dine-4-car­bo­ni­trile ligands and are linked by pairs of μ-1,3-bridging anionic ligands into infinite linear chains. No directional inter­molecular inter­actions are observed between the chains.

The asymmetric unit contains two mononuclear units of the complex, each consisting of one deprotonated ligand, one thio­cyanate anion (SCN⁻) coordinated through its nitro­gen atom, one free water mol­ecule, and one free 5-bromo­salicyl­aldehyde mol­ecule, forming a co-crystal. The copper atom is four-coordinate, adopting a slightly distorted square-planar geometry defined by the tridentate ligand and the nitro­gen atom of the thio­cyanate anion. The water mol­ecule plays a key role in linking the two complex units through O–H⋯O hydrogen bonds. In the crystal, C—H⋯O and C—H⋯Br hydrogen bonds allow the free 5-bromo­salicyl­aldehyde mol­ecule to form a bridge between two adjacent layers.

The crystal structure of a zinc(II) complex containing 3-(2-sulfanylidene-2,3-di­hydro-1,3-benzoxazol-3-yl)propano­ate and 1,10-phenanthroline ligands is described, together with its supra­molecular features and Hirshfeld surface analysis.

The title compounds were formed from the reaction of the metallo-ligand [Fe^II(L)]·(H₂O) (H₂L is 2-{[2-(2-hy­droxy-3-meth­oxy­benzyl­idene­amino)­phenyl­imino]­meth­yl}-6-meth­oxy­phenol, C₂₂H₂₀N₂O₄) with yttrium acetate and potassium nitrate.

In the title compound, the dihedral angle between the aromatic rings is 77.78 (8)°. In the crystal, the mol­ecules are linked into zigzag ribbons propagating along the [210] direction by pairwise O—H⋯O hydrogen bonds through their two carb­oxy­lic acid groups to generate centrosymmetric R²₂(8) dimers in each case. In addition, mol­ecules are connected via pairwise N—H⋯π inter­actions between the NH groups and the fluoro­benzene rings.

A (meth­oxy­meth­yl)-substituted 1,2,4,5-tetra­zine was treated with BBr₃ to obtain both the (hy­droxy­meth­yl)- and (bromo­meth­yl)-substituted 1,2,4,5-tetra­zine; all three compounds were characterized by single-crystal X-ray diffraction measurements, which revealed the formation of inter­molecular π–π stacks for all tetra­zines, as well as hydrogen-bonded dimers of the tetra­zine alcohol.

The title mol­ecule is present in its 3-imino-3H-isoindol-1-amine tautomeric form. In the crystal, inter­molecular N—H⋯N hydrogen bonds lead to the formation of infinite chains propagating parallel to [001].

In the title phosphate, all of the cations are located on tetra­hedral sites, and the three different tetra­hedra are linked by their vertices to form a double layer stacked along the c-axis direction. The plane formed by the rubidium atoms is sandwiched between the double layers.