Synthesis, crystal structure, thermal and dielectric properties of bis(p-phenylenediammonium) chloride hexachlorobismuthate(III) monohydrate [C6H4(NH3)2]2ClBiCl6.H2O

Synthesis, crystal structure, and dielectric properties of [C6H4(NH3)(2)](2)ClBiCl6.H2O are reported. The compound crystallizes in the monoclinic system with space group P2(1)/n. The unit cell dimensions are a = 9.836(5), b = 19.582(5), c = 13.082(5) , beta = 104.731(5)A degrees with Z = 4. The atomic arrangement can be described by an alternation of organic and inorganic layers. The anionic layer is built up of octahedral of [BiCl6](3-) arranged in sandwich between the organic layers. The crystal packing is governed by means of the ionic N-H center dot center dot center dot Cl hydrogen bonds, forming a three-dimensional network. The dielectric properties have been investigated at temperature range from 297 to 410 K at various frequencies (10 Hz-100 kHz). Dielectric studies were performed to confirm results obtained with thermal analysis. The evolution of dielectric constant as a function of temperature and frequency of single crystal has been investigated in order to determine some related parameters.