Spectral, thermal, structural, dielectric and microhardness studies of gel grown diaquasuccinatocadmium(II) hemihydrate

Diaquasuccinatocadmium(II) hemihydrate (DSCH) single crystals were grown successfully by single gel diffusion technique at room temperature. Block shaped crystals of size 11 mm × 6 mm × 3 mm have been obtained in 24 days. The grown crystals were colorless and transparent. The crystalline nature and reflection planes of the sample were confirmed by the powder X-ray diffraction technique. The crystal structure of the DSCH crystal was determined by single crystal X-ray diffraction technique. According to microanalytical results the formula of the crystal is [Cd(C4H4O4)H2O]2·0.5H2O. Fourier Transform Infrared (FT-IR) and Fourier Transform Raman (FT-Raman) studies were used to confirm the presence of various functional groups in the crystal. The thermal behavior of the crystal was studied by simultaneous TGA–DTA methods in nitrogen atmosphere. The mechanical strength of the grown crystal was estimated by Vickers microhardness test. The dielectric behavior of the sample was also studied.

Photograph of as grown crystal of diaquasuccinatocadmium(II) hemihydrate in boiling tube.Figure optionsDownload as PowerPoint slideHighlights
► Metal organic frameworks (MOFs) have applications in gas adsorption, catalysis and ion exchange.
► Gel diffusion method for the crystal growth.
► More insight into the crystal structure of diaquasuccinatocadmium (II) hemihydrate.
► FT-IR and FT-Raman studies to determine the functional groups.
► The mechanical strength of the crystal investigated by microhardness studies.
► Thermal decomposition behavior studied by TGA/DTA.