Bis(10-meth­oxy­benzo[h]quinolinium) tetra­chloridozinc

In the title compound, (C₁₄H₁₂NO)₂[ZnCl₄], the benzo[h]quinolinium groups are approximately planar, with maximum deviations of 0.049 (8) and 0.056 (9) Å. The meth­oxy groups are stabilized by intra­molecular N—H...O hydrogen bonds. The structure also exhibits weak inter­molecular N—H...Cl hydrogen bonds between the cations and anions. π–π inter­actions are present between the pyridinium and benzene rings [centroid–centroid distances = 3.640 (4), 3.728 (5) and 3.628 (5) Å].

2-(Anthracen-9-yl)-10-meth­oxy­benzo[h]quinoline acetone hemisolvate

The asymmetric unit of the title structure, C₂₈H₁₉NO·0.5C₃H₆O, comprises one 2-(anthracen-9-yl)-10-meth­oxy­benzo[h]­quinoline mol­ecule and an acteone mol­ecule with an occupany of 0.5. The solvent mol­ecule is disordered around a centre of symmetry. Its occupancy was determined from NMR data and kept fixed during the refinement. The two conjugated ring systems of the mol­ecule are almost perpendicular to each other; the inter­planar angle between the anthracene and quinoline ring systems is 84.9 (2)°.