Solvothermal synthesis and crystal structure of an inorganic-organic hybrid compound [DAMS]2[CdI4] (DAMS=4-dimethylaminostyryl-1-methyl-pyridinium)

An inorganic-organic hybrid compound [DAMS](2)[CdI4] (DAMS=4-dimethyl-aminostyryl-1-methylpyridinium cation) was synthesized via the solvothermal reaction of equimolar CdI2 and DAMS.I- in a mixture of acetonitrile and H2O (2:1 in volume ratio) at 130degreesC. The product was characterized by X-ray single crystal structure analysis. The crystals of the title compound are triclinic, P-(1) over bar, with a=12.9849(19) Angstrom, b=13.1935(13) Angstrom, c=13.8792(10) Angstrom, alpha=106.798(6)degrees, beta=109.827(6)degrees, gamma=108.206(9)degrees, V=1906.0(4) Angstrom(3), Z=2. The cadmium atom was bonded to 4 iodine atoms to form a distorted tetrahedron, which was surrounded by DAMS cations. There exist pi-pi stacking interaction between the 2 adjacent antiparallelly arrayed DAMS cations.