Synthesis,structural and thermal characterization of metaphosphatecobalt(II) salt

A new inorganically template metaphosphate of Co(II) complex has been synthesized and characterized by different measurements such as DSC, FT-IR, C–H–N–O–S, ESR, TG-DTA and X-RD. Differential Scanning Calorimeter (DSC) elucidated negative specific heat of the system and has used to evaluate some thermo dynamical constants like activation energy (E _a), frequency factor (A), enthalpy and entropy of that system. The specific heat capacity of the system is measured both in atmospheric O₂ and N₂ atmosphere at different heating rates of 278, 283, 293 and 298 K min⁻¹ in room atmosphere and 288 K min⁻¹ in N₂ atmosphere.