organic compounds
Open access
The title compound, C20H10Cl2N2, has crystallographic twofold rotational symmetry [maximum deviation from the least-squares plane = 0.038 (1) Å]. In the crystal, weak π–π ring stacking interactions occur down the a-axis direction [minimum centroid–centroid separation = 3.7163 (8) Å].
metal-organic compounds
Open access
In the title compound, [Ag(C12H8N2S)2]BF4, the two-coordinate AgI ion lies on a crystallographic inversion center and is linearly bonded to the N-donor atoms of two separate quinoxaline ligands. The thiophenyl ring of the ligand is nearly coplanar with the quinoxaline ring system [dihedral angle = 9.15 (13)°]. In the crystal, the complex molecules pack in layers parallel to (-102) and form weak π–π ring stacking interactions [minimum ring centroid separation = 3.7054 (17) Å]. The tetrafluoridoroborate anion is equally disordered about an inversion center.
organic compounds
Open access
In the title compound, C16H10N2S2, the thienyl rings are inclined to one another by 62.71 (10)°, and are inclined by 63.94 (8) and 21.35 (8)° to the quinoline mean plane [maximum deviation = 0.031 (2) Å]. In the crystal, the molecules pack in a herringbone pattern, with π–π stacking interactions [centroid–centroid distances = 3.7381 (15) and 3.7268 (15) Å].