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Copper malonate crystals were grown using silica gel as the growth medium. The grown crystals were characterized by X-ray diffraction analysis (XRD), Fourier transform infrared spectroscopy (FTIR) and Fourier transform Raman spectroscopy (FT Raman). The thermal decomposition of the compound was investigated using thermogravimetry (TG) and derivative thermogravimetry (DTG) measurements.

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Single crystals of cobalt malonate dihydrate were grown in a silica gel medium by the single diffusion method. The thermal behavior of the crystals was investigated by thermogravimetric and differential thermal analyses. The dielectric constant, dielectric loss and ac conductivity of the crystals were estimated as a function of temperature in the range 40-140 • C for four different frequencies. The results indicate that the grown crystals are thermally stable up to about 150 • C and exhibit a phase transition at 130 • C.