Research Article

Novel Gallium(III), Germanium(IV), and Hafnium(IV) Folate Complexes and Their Spectroscopic, Thermal Decomposition, Morphological, and Biological Characteristics

Table 5

Kinetic thermodynamic parameters of the FAH2 and synthesized complexes.

CompoundStepsCoats–Redfern equation
rE (kJ mol−1)S (Jk−1mol−1)H (kJ mol−1)G (kJ mol−1)

Ga(III) complex1st0.99764.95104−1.681024.631041.12105
2nd0.94292.82104−1.381022.341041.04105
3rd0.98721.10105−1.791021.021052.62105

Ge(IV) complex1st0.98962.91104−1.711022.611048.80104
2nd0.98085.02104−1.751024.601041.34105
3rd0.94775.21104−1.431024.521041.64105

Hf(IV) complex1st0.99873.18104−1.651022.871048.94104
2nd0.98924.30104−1.621023.851041.26105
3rd0.99704.90104−1.601024.451041.32105

CompoundStepsHorowitz and Metzger equation
rE (kJ mol−1)S (Jk−1mol−1)H (kJ mol−1)G (kJ mol−1)
Ga(III) complex1st0.98955.60104−1.421025.271041.08105
2nd0.93723.62104−2.371023.131041.70105
3rd0.98581.27105−1.561021.201052.60105

Ge(IV) complex1st0.98463.50104−1.901023.201041.01105
2nd0.99695.94104−1.731025.511041.43105
3rd0.97066.78104−2.211026.091042.45105

Hf(IV) complex1st0.97783.95104−1.781023.641041.02105
2nd0.98275.20104−1.971024.751041.54105
3rd0.98226.80104−1.921025.801042.34105