Crystal structure of poly[tetrakis(4-methvlanilinium) [octa-mu-chlorido-dichloriaotricadmium(II)]]: a two-dimensional organic-inorganic hybrid perovskite

The title polymeric compound, (C7H10N)(4)[Cd3Cl10], involves a centrosymmetric [Cd3Cl10](4-) tetra-anion, which is made up of three face-sharing CdCl6 octahedra, linked by four corner Cl atoms, forming layers propagating in the ab plane. The p-methylanilinium cations, situated between the layers, form N-H center dot center dot center dot Cl hydrogen bonds to the layers, which stack up the c-axis direction. There are no pi-pi or C-H center dot center dot center dot pi interactions involving the aromatic rings, which are inclined to each other by 42.3 (1) degrees in the asymmetric unit.