Abstract
The crystal structure of the title compound, (C6H16N2O)[CdCl1.90I2.10], a new organic-inorganic hybrid salt synthesized in the form of single crystals, consists of discrete statistically distributed di-chlorido-diiodido-cadmate/chlorido-tri-iodido-cadmate anions (occupancy ratio 0.90:0.10) and 4-(2-ammonio-eth-yl)morpholin-4-ium cations, [NH3(CH2)2NH(CH2)4O]2+. The cations are linked by inter-molecular N-H⋯O hydrogen bonds, forming corrugated chains extending parallel to the c axis. The [CdCl1.90I2.10]2- tetra-halidocadmate anions lie between the chains to maximize the electrostatic inter-actions and are connected with the organic cations via N-H⋯Cl and C-H⋯Cl(I) hydrogen bonds developing in the ab plane and leading to the formation of a three-dimensional network structure. The tetra-coordinate CdII atom has a distorted tetra-hedral conformation, with a τ4 index of 0.87.
Highlights
The crystal structure of the title compound, (C6H16N2O)[CdCl1.90I2.10], a new organic–inorganic hybrid salt synthesized in the form of single crystals, consists of discrete statistically distributed dichloridodiiodidocadmate/chloridotriiodidocadmate anions and 4-(2-ammonioethyl)morpholin4-ium cations, [NH3(CH2)2NH(CH2)4O]2+
Inorganic metal halides may be associated with functionalized organic molecules to produce two different types of hybrid materials, both of which are of technological interest
When the organic molecules coordinate to the metal ions of the metal halides, the resulting products are called coordination polymers or coordination compounds
Summary
Inorganic–organic hybrid materials are crystalline materials in which the organic and inorganic moieties are connected via covalent, ionic or hydrogen bonds inside the structures. Once the moieties are combined as perhalidometalate anions and organic cations, the resulting products are called ionic organic–inorganic hybrid materials. Well-tested applications of these ionic hybrids include light-emitting diodes (LEDs) (Ciurtin et al, 2001) In these materials, the crystal packing is ensured by Coulombic interactions and hydrogen bonds. As a contribution to the investigation of the above materials, we report here the crystal structure of one such compound, (C6H16N2O)[CdCl1.90I2.10], formed from the reaction of 4-(2-aminoethyl)morpholine and cadmium iodide in hydrochloric acid
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