Poly[bis-(O-ethyl-hydroxy-laminium) [di-μ-chlorido-di-chlorido-cadmate(II)]]

Abstract

The title compound, {(CH₃CH₂ONH₃)₂[CdCl₄]}_n, consists of bilayers of organic CH₃CH₂ONH₃ ⁺ cations and infinite [CdCl₄]_n ^2n- inorganic layers. It can be described as an organic-inorganic hybrid layered perovskite. In the crystal structure, the Cd^II cation is situated at an inversion center and is coordinated by six chloride ions, forming a slightly distorted octa-hedral coordination polyhedron. By corner-sharing of the [CdCl₆] octa-hedra, infinite [CdCl₄]_n ^2n- inorganic layers are formed, extending parallel to (100). The inorganic layers alternate with bilayers of CH₃CH₂ONH₃ ⁺ cations, whereby the connection of the cationic and anionic layers is achieved through N-H⋯Cl hydrogen bonds and Coulombic inter-actions.

Keywords: O-ethyl­hydrox­ylammonium; crystal structure; layered perovskite; organic-inorganic hybrid.