Dielectric and magnetic properties of thermally stable crystals of cobalt dimandelate.

Organic–inorganic hybrids have aroused scientific attention in recent times due to their enchanting peculiarities. These materials integrate the best characteristics of organic and inorganic compounds into a single material and are customized for application in electronics, optics, magnetism and other industries. The regulated diffusion of cation in a viscous reactant medium (gel technique) is used for the first time to grow crystals of cobalt dimandelate, an organic–inorganic hybrid. Powder XRD studies were used for structural analysis of the produced crystals. FTIR and Raman analyses confirm the functional groups present in the grown sample. The thermal degradation of the crystal is analysed by thermogravimetric analysis technique and the material shows relatively high thermal stability. The UV–visible spectral studies of the sample were done and optical band gap of the material is calculated as 4.47 eV. The elemental analysis using CHNS technique validated the proposed molecular formula (Co[(C6H5) HOCH COO)]2) of the compound. VSM studies were performed for magnetic characterization of the sample. The dielectric constant, ac conductivity and dielectric loss of the hybrid crystal were calculated for different electric field frequencies. Using theoretical formulations, values for several solid-state dielectric properties, such as valence electron plasma energy, Penn gap, Fermi energy, electrical polarizability and susceptibility of the material were computed. [ABSTRACT FROM AUTHOR]