SHARMA, KAUSHIK: ORGANOTIN(IV) COMPLEXES
963
Conclusions
Thermal behaviour of the complexes has been investigated and Ea values have been
found to follow the order:
R2Sn(L1)2 or R2Sn(L2)2>R3Sn(L1) or R3Sn(L2)
It was, therefore, evident that the nature of metal ion in the organic moiety con-
tributed to the variation in the activation energy for the thermal degradation of the
complexes. The energy of activation, in turn, reflected the kinetic liability of the
complexes. The compounds with lower Ea values were more labile as compared to
those with higher Ea values.
The TG data of the complexes was supplemented by DTA studies. The heat of
reaction (∆H) has been enumerated from the DTA curves. The temperature
dependent calibration coefficient has been obtained from the Curell equation.
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