232 research outputs found
[(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
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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
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