Transition-metal coordination polymers [M(ndc)
(bpy)(H2O)m]xH2O (where M = Co(II), Ni(II), Cu(II)
and Zn(II), ndc = 1,4-naphthalenedicarboxylate, bpy =
4,40-bipyridine; m = 0 or 1; x = 1 or 2) were prepared by
reacting the ligands and metal ions at room temperature
with the aid of microwave irradiation and sonication
methods. The structure of the coordination polymers was
assigned based on elemental analysis, FT-IR and electronic
spectral studies, thermal analysis, scanning electron
microscope and X-ray powder diffraction. Thermogravimetric
analysis was also used to follow up the possible
thermal decomposition steps and to calculate the thermodynamic
parameters of the nano-sized metal complexes.
The kinetic parameters were calculated making use of the
Coats–Redfern and Horowitz–Metzger equations. All
obtained results of the different technics used in our study
stated the ability to synthesis the metal coordination
polymers of our interest using both microwave irradiation
and sonication methods.