Bis(benzyl­trimethyl­ammonium) di-μ-bromido-bis­[dibromido­mercurate(II)]

In the crystal structure of the title compound, (C₁₀H₁₆N)₂[Hg₂Br₆], the condensed anion consists of two edge-sharing HgBr₄ tetrahedra and is situated on a centre of symmetry. The anions are linked to the cations through weak C—H...Br inter­actions.

Butyl­triethyl­ammonium tetra­chlorido­ferrate(III)

In the title compound, (C₁₀H₂₄N)[FeCl₄], no classical hydrogen bonds are observed. The butyl­triethyl­ammonium cations inter­act with the tetra­hedral [FeCl₄]⁻ anion through weak C—H...Cl inter­actions, forming a three-dimensional network.

Bis(butyl­triethyl­ammonium) di-μ-bromido-bis­[dibromido­mercurate(II)]

In the title mol­ecular salt, (C₁₀H₂₄N)₂[Hg₂Br₆], the complete anion is generated by crystallographic inversion symmetry, forming a pair of edge-sharing HgBr₄ tetra­hedra. In the crystal, the cations and anions are linked by weak C—H...Br inter­actions.

Dimeth­yl(3-oxo-3-phenyl­prop­yl)aza­nium tetra­chloridoferrate(III)

In the title mol­ecular salt, (C₁₁H₁₆NO)[FeCl₄], an intra­molecular N—H...O hydrogen bond in the cation generates an S(6) loop and the conformation of the C(=O)—C—C—N chain is gauche [torsion angle = 57.0 (6)°]. The anion is a near-regular tetra­hedron [range of Cl—Fe—Cl angles = 107.93 (8)–112.13 (10)°]. There are no directional inter-ionic bonds in the crystal.

Benzyl­triethyl­ammonium tetra­chlorido­ferrate(III)

In the title mol­ecular salt, (C₁₃H₂₂N)[FeCl₄], three of the chloride ions of the tetra­hedral Fe^III-containing anion are disordered over two orientations in a 0.656 (11):0.344 (11) ratio. In the crystal, there are no identifiable directional inter­actions between cations and anions except for Coulombic forces.

Diaqua­bis­(L-lactato)magnesium

In the title compound, [Mg(C₃H₄O₃)₂(H₂O)₂], the Mg²⁺ cation is six-coordinated by four O atoms from two lactate anions and two aqua ligands, completing an MgO₆ distorted octa­hedral geometry. The complex mol­ecules are bridged by O—H...O hydrogen-bonding inter­actions into helical chains parallel to the a axis, which are linked by further O—H...O inter­actions, forming a three-dimensional supra­molecular architecture.

Benzene-1,3,5-tricarbonyl trichloride

In the title molecule, C₉H₃Cl₃O₃, there are three short interactions involving the benzene H atoms and the chloro­formyl Cl atoms. In the crystal, mol­ecules stack along the a axis with no significant non-bonded inter­actions.

Brusatol

The title compound, C₂₆H₃₂O₁₁, is composed of an α,β-unsaturated cyclo­hexa­none ring (A), two cyclo­hexane rings (B and C), a six-membered lactone ring (D) and tetra­hydro­furan ring (E). Ring A exists in a half-chair conformation with a C atom displaced by 0.679 (2) Å from the mean plane through the remaining five atoms. Ring B exists in a normal chair conformation. Both rings C and D exist in a twisted-chair conformation due to the O-atom bridge and the carbonyl group in rings C and D, respectively. Ring E shows an envelope conformation with a C atom displaced by 0.761 (1) Å from the mean plane through the remaining five atoms. The ring junctions are A/B trans, B/C trans, C/D cis and D/E cis. An intra­molecular O—H...O hydrogen bond occurs. In the crystal, O—H...O hydrogen bonds involving the hy­droxy, lactone and ester groups and C—H...O inter­actions are observed.