Calculation of Pseudo First-order rate constants, kobs, and Activation Parameters Containing ∆S#, ∆H# and Ea
کد مقاله : 1203-PHYSCHEM20
1محدثه طاهریان، 2بیتا شفاعتیان *
1دانشجوی دانشگاه دامغان
2هیات علمی
چکیده مقاله:
Two New organoplatinum(II) and organoplatinum(IV) complexes containing chelated ligand with nitrogen donor atoms, (L), were synthesized and characterized by different methods such as: FT-IR, 1H NMR, UV/Vis, elemental analysis and conductometry. Kinetic studies of the oxidative addition reaction of MeI with organoplatinum(II) complex were investigated and the temperature dependence of the rate constant was reported. From the temperature dependence of rate constants, the activation parameters were calculated. The activation parameters containing Ea, ΔH# and ΔS# of the reaction were calculated according to Arrhenius and Eyring equations, respectively. The large negative of ΔS# showed that the reaction occurred by the SN2 mechanism.
کلیدواژه ها:
Activation Parameters; Rate Constants; Organoplatinum
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