Bis(N-adamantyl-N′-ethyl­imidazolium) tetra­bromido­manganate(II)

The title compound consists of a manganese(II) ion that is bonded to four bromide atoms in a tetra­hedral coordination, and a cation based on an imidazolium group with one ethyl and one adamantyl (the simplest diamondoid) group.

Poly[(μ₄-5,7-di­hydro-1H,3H-dithieno[3,4-b:3′,4′-e]pyrazine-κ⁴N:N′:S:S′)tetra-μ₃-iodido-tetra­copper]: a three-dimensional copper(I) coordination polymer

The reaction of ligand 5,7-di­hydro-1H,3H-dithieno[3,4-b:3′,4′-e]pyrazine with CuI lead to the formation of a three-dimensional coordination polymer.

12-Ethyl-6a,10a-di­hydro-5H-6-oxachrysene

In the title compound, the pyran ring is in a half-chair conformation. The essentially planar naphthalene ring system forms a dihedral angle of 14.37 (5)° with the fused benzene ring. In the crystal, pairs of mol­ecules are connected into inversion dimers by weak C—H⋯O hydrogen bonds to generate (6) loops.

1,2,3,5-Tetra­hydro­naphtho­[2,1-c]oxepine

In the title compound, the seven-membered ring is in a psuedo-chair conformation. In the crystal, mol­ecules are linked by weak C—H⋯O hydrogen bonds forming layers parallel to (010). In addition, there are weak π–π stacking inter­actions between inversion-related naphthalene ring systems.

Tris(1H-benzimidazol-2-ylmeth­yl)amine methanol tris­olvate

In the title solvate, the tertiary amine adopts a stair-like conformation, with all imine and amine groups forming N—H⋯O and O—H⋯N hydrogen bonds with the lattice methanol mol­ecules.

The head-to-head photodimer of indeno­indene

The crystal structure of the head-to-head photodimer of indeno­indene, obtained by irradiation of 1-(1-benzo­cyclo­butenyl­idene)benzo­cyclo­butene, is reported.

12,15-Di­methyl-8-oxa­tetra­cyclo­[8.8.0.0^2,7.0^11,16]octa­deca-1(18),2,4,6,11(16),12,14-heptaen-10-ol

In the title compound, he pyran ring is in a half-chair conformation and the fused ring system comprising the benzene and cyclo­hexene rings is essentially planar and forms a dihedral angle of 27.95 (6)° with the other benzene ring. In the crystal, O—H⋯O hydrogen bonds connect the mol­ecules into chains propagating along [001].

(E)-6-(Furan-2-yl­methyl­idene)-6,7,8,9-tetra­hydro­pyrido[2,1-b]quinazoline-11-thione

A new quinazolinthione derivative was synthesized, and X-ray diffraction analysis proved the E configuration for the exocyclic double bond in the mol­ecule.

[1–9-NαC]-Linusorb B3 (Cyclo­linopeptide A) di­methyl sulfoxide monosolvate

[1–9-NαC]-Linusorb B3 (Cyclo­linopeptide A) was extracted from flaxseed oil crystals formed in dimethyl sulfoxide. The mol­ecule has four intra­molecular N—H⋯O hydrogen bonds, and the DMSO solvate mol­ecule is bound to the Phe⁶ amino acid by a fifth N—H⋯O hydrogen bond.

2,5-Bis[(E)-2-phenyl­ethen­yl]-3,6-bis­(pyridin-2-yl)pyrazine

The title mol­ecule has inversion symmetry, adopting the shape of a St Andrew's cross. It shows dihedral angles between adjacent aryl units of around 50° whereas torsion angles of ca 10° are found along the aryl­ene vinyl­ene path.

7-Chloro-3-(4-methyl­benzene­sulfon­yl)pyrrolo[1,2-c]pyrimidine

The dihedral angle between the pyrrolo­[1,2-c]pyrimidine ring system and the benzene ring is 80.2 (9)°. In the crystal, inversion dimers linked by pairs of C—H⋯O inter­actions generate (16) loops. Several aromatic π–π stacking inter­actions between the pyrrolo­[1,2-c]pyrimidine rings, as well as separately between the pyrrolo and pyrimidine groups [shortest centroid–centroid separation = 3.5758 (14) Å], help to consolidate the packing.

4-Amino-6-(piperidin-1-yl)pyrimidine-5-carbo­nitrile

In the crystal, mol­ecules of the title compound are linked into (100) sheets by N—H⋯N hydrogen bonds.

Tri­methyl 4,4′,4′′-(ethene-1,1,2-tri­yl)tribenzoate

The tandem in situ double Suzuki coupling reaction of a diborated ethyl­ene compound containing electron-withdrawing aromatic ester groups was studied. The major product is derived from the Suzuki coupling involving the boryl group and an aryl­iodide derivative followed by preferential protodeboronation of the second boryl ligand.