Rubidium tetra­fluorido­bromate(III): redetermination of the crystal structure from single-crystal X-ray diffraction data

The crystal structure model of RbBrF₄ was refined against single-crystal X-ray diffraction data collected at 100 K and compared with the previous results.

[Oxybis(ethane-1,2-di­yl)]bis­(di­methyl­ammonium) octa­molybdate dihydrate

In the title compound, a hydrogen-bonded octa­molybdate anion is coordinated to a protonated bis­(dialk­yl)ammonium ether salt.

Sodium [N,N′-ethyl­enebis(D-penicillaminato)]indate(III) tetra­hydrate

The asymmetric unit of the title compound contains four indium(III) complex anions, four sodium(I) cations and sixteen water mol­ecules. The indium(III) complex anions and sodium(I) cations are alternately connected through coordination bonds between Na⁺ ions and the carboxyl­ate groups of the complex anions, forming an infinite sixfold left-handed helix along the c-axis direction. In the crystal, the helices are linked by O—H⋯O hydrogen bonds between water mol­ecules bound to Na⁺ ions and carboxyl­ate groups.

μ₂-Methanol-κ²O:O-bis­[(1,10-phenanthroline-κ²N,N′)bis­(2,3,4,5-tetra­fluoro­benzoato)-κO;κ²O,O′-copper(II)]

The title dinuclear complex features a methanol mol­ecule bridging two copper centres.

1,4-Bis(2-nitro­benz­yl)piperazine

The title compound was synthesized via the base-assisted reaction of piperazine and 2-nitro­benyl bromide in toluene

(4-Carb­oxy­benz­yl)tri­phenyl­phospho­nium hexa­fluorido­phosphate tetra­hydro­furan monosolvate

The title structure crystallizes in a triclinic unit cell as an ion pair with a single disordered solvent mol­ecule. Hydrogen bonding is observed between the carb­oxy­lic acid moiety and the tetra­hydro­furan solvent.

2-[1-(1,3-Dioxo-1,3-di­hydro-2H-inden-2-yl­idene)eth­yl]hydrazinecarbo­thio­amide

The title mol­ecule exists in a thio­ketone form, in which weak intra­molecular N—H⋯O and C—H⋯O hydrogen bonds are observed. In the crystal, inter­molecular N—H⋯S and N—H⋯O hydrogen bonds, and π–π inter­actions link the mol­ecules, forming a three-dimensional network.

Bis(4-hy­droxy-N,N-di-n-propyl­tryptammonium) fumarate tetra­hydrate

The crystal structure of the fumarate salt of the synthetic psychedelic 4-HO-DPT is reported as its tetra­hydrate. A series of N—H⋯O and O—H⋯O hydrogen bonds connect the ions and water mol­ecules of crystallization into a three-dimensional network.

N-(tert-But­yl)-2-(2-nitro­phen­yl)imidazo[1,2-a]pyridin-3-amine

In the title compound, the dihedral angle between the pyridine and benzene rings is 55.68 (11)°. In the crystal, N—H⋯N hydrogen bonds link the mol­ecules into [010] chains.

Ethyl 5-[(eth­oxy­carbon­yl)­oxy]-5,5-di­phenyl­pent-2-ynoate

In the title compound, which crystallizes with two mol­ecules in the asymmetric unit, the C≡C distances are almost the same but the Csp³—C≡C angles differ somewhat.

5-(3-Hy­droxy­phen­yl)-1,3,4-oxa­diazole-2(3H)-thione hemihydrate

The title 1,3,4-oxa­diazole derivative is essentially planar, with a dihedral angle of 6.101 (17)° between the phenyl and oxa­diazole rings.

5,13-Bis(4-meth­oxy­phen­yl)di­naphtho­[2,3-b:2′,3′-d]thio­phene S,S-dioxide di­chloro­methane hemisolvate

The title com­pound crystallizes with two independent mol­ecules and one di­chloro­methane solvent mol­ecule in the asymmetric unit. The crystal packing is stabilized by C—H⋯O hydrogen bonds.

2-[(1-Benzyl-1H-1,2,3-triazol-4-yl)meth­oxy]-1-naphthaldehyde

In the title compound, the triazole ring system is inclined at dihedral angles of 4.14 (18) and 69.24 (11)° with the naphthalene ring system and phenyl ring, respectively. In the crystal, mol­ecules are linked by C—H⋯O hydrogen bonds into double columns propagating along the b-axis direction.

1-Nitro-4-(1-propyn-1-yl)benzene

The title compound was prepared by alkynylation of 4-iodo­nitro­benzene, with 1,3-dili­thio­propyne, in the presence of CuI and catalytic amounts of Pd(PPh₃)₂Cl_2.