[(2,3,5,6-η)-Bicyclo­[2.2.1]hepta-2,5-diene]dibromidopalladium(II)

In the title complex, [PdBr2(C7H8)], the PdII ion lies in a distorted square-planar environment defined by the two Br atoms and the mid-points of the two π-coordinated double bonds of bicyclo­[2.2.1]hepta-2,5-diene. The complex is disposed about a crystallographic mirror plane parallel to the ac plane passing through the Pd, Br atoms and the centre of the diene ligand

(Z)-3-Chloro-3-phenyl-N-[(S)-1-phenyl­ethyl]prop-2-enamide

The asymmetric unit of the title compound, C17H16ClNO, contains two crystallographically independent mol­ecules. These mol­ecules are connected in an alternating fashion through N—H⋯O and C—H⋯O hydrogen bonds, generating one-dimensional chains of graph sets R 2 1(6) and C(4) along the a axis

9-Bromo-9-borafluorene

The title compound, C12H8BBr, crystallizes with three essentially planar mol­ecules (r.m.s. deviations = 0.018, 0.020 and 0.021Å) in the asymmetric unit: since the title compound is rigid, there are no conformational differences between these three mol­ecules. The crystal packing resembles a herringbone pattern

N-[(1S,2S)-2-Amino-1,2-diphenyl­eth­yl]-4-methyl­benzene­sulfonamide [(S,S)-TsDPEN]

The crystal structure of the title compound, C21H22N2O2S, shows a network of N—H⋯N and N—H⋯O hydrogen bonds. The tolyl and 1-phenyl rings are almost mutually coplanar [7.89 (9)°], while the 2-phenyl ring makes a dihedral angle of 50.8 (1) ° with the 1-phenyl ring. An intra­molecular N—H⋯N hydrogen bond stabilizes the mol­ecular conformation

1-Benzoyl-3-(pyridin-2-yl)-1H-pyrazole

In the title compound, C15H11N3O, the dihedral angle betwen the heterocyclic rings is 9.23 (5)° and the dihedral angle between the benzoyl and pyrazole rings is 58.64 (5)°. In the crystal, inversion dimers linked by pairs of C—H⋯O hydrogen bonds generate R 2 2(10) loops. The dimers stack into a column running parallel to the b-axis direction

2,6-Bis[1-(2-isopropyl­phenyl­imino)­ethyl]­pyridine

The title compound, C27H31N3, has E substitution at each imine double bond where the two N atoms adopt a trans–trans relationship. The benzene rings are twisted out of the mean plane of the pyridine ring; the mean planes of the aromatic groups are rotated by 63.0 (1) and 72.58 (8)°. The crystal structure is sustained mainly by C—H⋯π and hydro­phobic methyl–methyl inter­actions

2,2-Difluoro-4-phenyl-1,3,2-dioxaborolo[4,5-c]chromen-5-ium-2-ide

In the crystal, the inversely oriented mol­ecules of the title compound, C15H9BF2O3, form stacks along the a axis via π–π inter­actions between parallel phenyl­chromenium fragments. Linked by a network of C—H⋯F inter­actions, the stacks form layers in the ac plane that are dispersively stabilized in the crystal structure. Two F atoms bonded to the B atom are located in the plane perpendicular to the planar skeleton of the mol­ecule made rigid by two intra­molecular C—H⋯O inter­actions

catena-Poly[cobalt(II)-di-μ-chlorido-κ4 Cl:Cl-μ-1,5-dimethyl-1H-tetra­zole-κ2 N 3:N 4]: an X-ray powder investigation

The asymmetric unit of the title compound, [CoCl2(C3H6N4)]n, contains two Co atoms, both lying on inversion centres, two Cl atoms and one 1,5-dimethyl­tetra­zole ligand. The coordination polyhedra of both Co atoms adopt flattened octa­hedral geometry, with two N atoms from two ligands in axial positions and four Cl atoms in equatorial sites. Neighbouring Co atoms are linked together via two bridging Cl atoms and one tetra­zole ring to form polymeric chains running along the a axis

2-(4-Fluoro­phen­yl)-3-hy­droxy-4H-chromen-4-one

In the crystal structure of the title compound, C15H9FO3, inversely oriented mol­ecules form inversion dimers through pairs of O—H⋯O hydrogen bonds. The benzene ring is twisted at an angle of 12.0 (1)° relative to the 4H-chromene skeleton of the mol­ecule. Adjacent 4H-chromene units are parallel in a given column or oriented at an angle of 50.0 (1)° in neighboring, inversely oriented, columns, forming a herringbone pattern