Al_0.88Cu_0.94Fe_0.18

The inter­metallic phase with composition Al_0.88Cu_0.94Fe_0.18 was synthesized by high-temperature sinter­ing of a mixture with initial chemical composition Al₇₈Cu₄₈Fe₁₃. Al_0.88Cu_0.94Fe_0.18 adopts the CsCl structure type in space-group Pmm.

Rerefinement of the crystal structure of α-ThBr₄

The rerefinement of the crystal structure of α-ThBr₄ (α-ThCl₄ structure type) results in higher precision of the lattice parameters and the atomic coordinates.

Poly[[[μ-1,4-bis­(pyridin-4-ylmeth­yl)piperazine][μ-4-(2-carboxyl­atoeth­yl)benzoato]copper(II)] monohydrate], a coordination polymer with twofold inter­penetrated cds topology networks

A divalent copper tri-periodic coordination polymer with twofold inter­penetrating 6⁵8 cds topology, {[Cu(ceb)(bpmp)]·H₂O]_n, was structurally characterized by single-crystal X-ray diffraction.

Poly[[(μ₃-adamantane-1,3-di­acetato)[μ-N-(pyridin-3-yl)isonicotinamide]­nickel(II)] monohydrate], a layered coordination polymer with triangular (3,6) topology

The title inorganic Ni^II polymer features layers with a triangular (3,6) grid topology, stacked in a ABAB pattern to form a triperiodic structure.

[(1,2,5,6-η)-Cyclo­octa-1,5-diene](1-ethyl-4-iso­propyl-1,2,4-triazol-5-yl­idene)(tri­phenylphos­phane)iridium(I) tetra­fluorido­borate di­chloro­methane sesquisolvate

The synthesis and crystal structure of a new triazole-based N-heterocyclic carbene iridium(I) cationic complex with a tetra­fluorido­borate counter-anion and solvating di­chloro­methane is reported. The IrI center of the cationic complex has a distorted square-planar conformation, formed by a bidentate cyclo­octa-1,5-diene (COD) ligand, an N-heterocyclic carbene, and a tripheylphosphane ligand. There are weak hydrogen-bonding inter­actions between C—H groupings of the iridium complex and F atoms of the [BF₄]⁻ counter-ions.

Poly[bis­(O-ethyl­hydroxy­laminium) [di-μ-chlorido-di­chlorido­cadmate(II)]]

In the crystal structure of the title organic–inorganic hybrid layered perovskite, organic bilayers alternate with [CdCl₄]_n²ⁿ⁻ inorganic layers along [100].

Bis(diiso­butyl­ammonium) tetra­chlorido­bis­[3-(tri­fluorometh­yl)phen­yl]stannate

The title salt comprises di-isobutyl­ammonium cations and centrosymmetric tetra­chloro­bis-(3-trifuoro­methyl­phen­yl)stannate(IV) anions, which are connected in the crystal by N—H⋯Cl and C—H⋯F inter­actions.

1-Methyl-3-(naphthalen-2-yl)cyclo­penta­diene

An asymmetric naphthyl-/methyl-substituted cyclo­penta­diene was synthesized and one isomer of five accessible through sigmatropic rearrangement was isolated and characterized by ¹H NMR and X-ray diffraction. The title compound is envisioned as a π-bonded `antenna' ligand to enhance lanthanide ion luminescence sensitization.

2-[4-(2-Chloro­benz­yl)-3-methyl-6-oxo-1,6-di­hydro­pyridazin-1-yl]-N-(4-fluoro­phen­yl)acetamide

An intra­molecular C—H⋯O hydrogen bond helps to determine the conformation of the title mol­ecule in which the 2-chloro­benzyl group is rotationally disordered.

6,7-Di­phenyl-5-thia-7-aza­spiro­[2.6]nonan-8-one 5,5-dioxide

The seven-membered 1,3-thia­zepan-4-one ring system, like its six- and five-membered-ring analogues, is known to be biologically active and is of potential medicinal use. The crystal structure reported is of the sulfone of a 1,3-thia­zepan-4-one in which the seven-membered ring adopts a pucker-chair conformation.