Di­chlorido­(pyridine-κN)[2,3,5,6-tetra­kis­(pyridin-2-yl)pyrazine-κ³N²,N¹,N⁶]nickel(II)

The central Ni^II ion has an N₄Cl₂ octa­hedral coordination sphere defined by three N atoms of the tridentate 2,3,5,6-tetra-2-pyridyl­pyrazine ligand, one N atom of the pyridine ligand and two Cl⁻ anions.

Bis[2,3-bis­(pyridin-2-yl)pyrazine-κ²N²,N³]palladium(II) dinitrate aceto­nitrile monosolvate

In the title complex, the central Pd^II ion has an N₄ square-planar coordination geometry defined by the four N atoms of two bidentate 2,3-di-2-pyridyl­pyrazine ligands.

Di-μ-chlorido-bis­(chlorido­{8-[2-(di­methyl­amino)­ethyl­amino]­quinoline}­cadmium) ethanol monosolvate

In the title bimetallic complex, two Cd²⁺ metal ions are linked by a pair of Cl⁻ ions and their coordinations completed by another Cl⁻ ion and three N atoms.

2-(2,4-Di­nitro­phen­yl)-1-(pyridin-4-yl)ethanol monohydrate

In the title compound, the dihedral angle between the aromatic rings is 9.60 (7)° and the chain linking the rings has an anti conformation with a torsion angle of −178.28 (12)°. In the crystal, the components are linked by O—H⋯O and O—H⋯N hydrogen bonds, generating (010) sheets.

Bufotenidinium iodide

The structure of the natural product bufotenidine is reported as its iodide salt.

9-[(Z)-2-(4,4,5,5-Tetra­methyl-1,3,2-dioxaborolan-2-yl)ethen­yl]-9H-carbazole

The title compound has a polarized π-system due to resonance between N—C(H)=C(H)—B and ionic N⁺=C(H)—C(H)=B⁻ canonical structures. In comparison with the previously reported E-isomer, the reduced planarity of Z-isomer results in a decrease of the contribution of the N⁺=C(H)—C(H)=B⁻ canonical structure.

2,3-Di­hydro-1H-cyclo­penta­[b]naphthalene-4,9-dione

The crystal structure of the title penta­cyclo-substituted naphtho­quinone, C₁₃H₁₀O₂ is described.

1-{3-[(7-Fluoro-9H-pyrimido[4,5-b]indol-4-yl)(meth­yl)amino]­piperidin-1-yl}propan-1-one

The title compound has been synthesized as an inhibitor of glycogen synthase kinase-3β. Two mol­ecules inter­act via two N—H⋯N hydrogen bonds.

Di­methyl 3,3′-[(4-nitro­phen­yl)methyl­ene]bis­(1H-indole-2-carboxyl­ate) ethanol hemisolvate

There are two main molecules in the asymmetric unit of the title compound in which the two indole ring systems are approximately perpendicular to one another, at dihedral angles of 69.3 (5) and 82.8 (4)°.

13-Benzyl-4,11-dihy­droxy-1,8-diphenyl-2,9-di­thia-13-aza­dispiro­[4.1.4.3]tetra­decan-6-one

In the title compound, C₃₀H₃₁NO₃S₂, the piperidine ring adopts a distorted chair conformation. The thio­phene rings have twisted conformations about the C—C bonds. Two of the phenyl rings in the structure are positionally disordered over two sets of sites. The crystal packing features inter­molecular O—H⋯O hydrogen bonds and S⋯H, O⋯H, C⋯H and H⋯H contacts.