Natural djurleite with refined composition Cu_61.39S₃₂ revealing disorder of some Cu sites

The djurleite phase with composition Cu_61.39S₃₂ was refined from a natural twinned specimen and shows disorder of some of its Cu sites.

Rerefinement of the crystal structure of SnTe_0.73(2)Se_0.27(2) from single-crystal X-ray diffraction data

The solid solution with composition SnTe_0.73 (2)Se_0.27 (2) crystallizes in the NaCl structure type.

[(1,2,5,6-η)-Cyclo­octa-1,5-diene](4-iso­propyl-1-methyl-1,2,4-triazol-5-yl­idene)(tri­cyclo­hexyl­phosphane-κP)iridium(I) tetra­fluorido­borate di­chloro­methane monosolvate

The IrI atom in the complex cation of the title salt has a distorted square-planar coordination environment, defined by a bidentate cyclo­octa-1,5-diene (COD) ligand, an N-heterocyclic carbene, and a tri­cyclo­hexyl­phosphane ligand.

Crystal structure of ethyl 2-{4-[(2-oxo-3-phenyl-1,2-di­hydro­quinoxalin-1-yl)meth­yl]-1H-1,2,3-triazol-1-yl}acetate

The quinoxaline portion of the title mol­ecule is not quite planar and the conformation of the entire mol­ecule is `U-shaped', which is consolidated by an intra­molecular anti­parallel carbonyl electrostatic inter­action. In the crystal, the mol­ecules form corrugated layers through C—H⋯O and C—H⋯N hydrogen bonds and C—H⋯π(ring) and π-stacking inter­actions.

2-Azido-N-(4-methyl­phen­yl)acetamide

The asymmetric unit comprises three independent mol­ecules, two pairs of which differ significantly in the rotational orientation of the azido group and one pair having very similar conformations. Zigzag chains extending along the c-axis direction are formed individually by each independent mol­ecule through N—H⋯O hydrogen bonds.