Abstract
A few coordination chain polymeric assemblies of the type [M(H2L)(H2O)2]n·xH2O [where M = Mn(II), Cu(II) and Zn(II) x = 1; Co(II) and Ni(II) x = 2, H2L = 2,2′-bis-4-[(8-hydroxy-5-quinoline methylenoxy) phenyl] propane] (BHQPP) have been investigated. Structural and spectroscopic properties have been determined by elemental analyses, infrared spectra, electronic spectra, magnetic measurements and thermo-gravimetric analyses. Magnetic moment and reflectance spectral studies reveal that an octahedral geometry is present in all the prepared coordination polymers. The kinetic parameters such as order of reaction (n) and the energy of activation (Ea) were determined using the Freeman–Carroll method. The pre-exponential factor (A), the activation entropy (ΔS#), the activation enthalpy (ΔH#) and the free energy of activation (ΔG#) have been calculated.
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