Crystal growth and characterization of a new co-ordination complex—barium tetrakis(maleate) dihydrate Original Research Article

Crystals of barium tetrakis(maleate) dihydrate [Ba4(C4H2O4)4]⁎2H2O are grown in gelated hydrosilica matrix. Single crystal X-ray diffraction studies show that the crystal system is monoclinic with space group P21/c. The unit cell dimensions are a=9.3721(2) Å, b=20.5880(7) Å, c=14.0744(4) Å, α=γ=90°, β=90.289(2)°. Powder XRD studies confirmed the single phase nature of the grown crystals. The FTIR data is in conformity with the XRD results. The TG–DTA curves of the material indicate a three-step thermal decomposition. The response of the dielectric properties in the temperature range 30 °C to 500 °C is correlated with the TG–DTA results.