Growth and structural studies of hybrid single crystal of cadmium citrate hexahydrate

• Published in: Journal of molecular structure 2019-10, Vol.1193, p.231-238
• Main Authors: Jumanath, E.C., Pradyumnan, P.P.
• Format: Article
• Language: English
• Subjects: Cadmium citrate hexahydrate; Characterization; Molecular structure; Single crystal growth; X-ray diffraction
• ISSN: 0022-2860; 1872-8014
• DOI: 10.1016/j.molstruc.2019.04.129

Single crystalline hybrid framework of cadmium citrate hexahydrate has been achieved by controlled diffusion of cations in a reactive gel medium. The effect of various growth parameters and different physico-chemical characterization of these crystals were studied. The single crystal X-ray diffraction was used to identify the three dimensional molecular structure and unit cell parameters of the grown crystal. The FT-IR and micro Raman spectral studies, reported the modes of vibration of different functional groups present in the crystal. The thermogravimetric analysis supported the suggested molecular formula of the grown crystal as Cd3(C6H5O7)2·6H2O and the hydrated compound was found to be thermally stable up to a temperature of 67 °C. The thermal decomposition of the crystal in the Nitrogen atmosphere resulted in the formation of cadmium carbonate as the final product. UV–visible spectroscopic studies revealed that the grown crystal possesses high transmittance in the entire visible region. The frequency dependence of dielectric constant and dielectric loss with the applied electric field was also analysed. [Display omitted] •Single-crystal growth of biologically important cadmium citrate hexahydrate from silica gels is reported.•Crystal belongs to monoclinic structure with space group P21/n.•Composition of the crystal is established as Cd3(C6H5O7)2·6H2O.•Optical band gap of the material is found to be 5.152eV.