Synthesis, Characterization, and Thermal and Antimicrobial Activities of Some Novel Organotin(IV): Purine Base Complexes

Table 4

Phenomenological data for the thermal decomposition of the complexes.

Complex	Step number	TG plateaux (K)	Mass loss%		Nature of loss
			Observed	Calc.
(C6H5CH2)3Sn(L^1)	I	483–673	46.0	47.86	Loss of 3 benzyl groups
	II	893–1003	72.0	73.73	Formation of SnO2
(p-ClC6H4CH2)3Sn(L^1)	I	443–633	55.0	55.80	Loss of 3 p-chlorobenzyl groups
	II	873–973	75.0	77.73	Formation of SnO2
(C6H5CH2)2Sn(L^1)Cl	I	513–663	34.7	35.36	Loss of 2 benzyl groups
	II	703–773	42.0	42.20	Loss of chlorine atom
	III	893–973	69.4	70.88	Formation of SnO2
(p-ClC6H4CH2)2Sn(L^1)Cl	I	483–673	42.0	42.94	Loss of 2 p-chlorobenzyl groups
	II	723–793	47.0	48.98	Loss of chlorine atom
	III	873–973	73.5	74.29	Formation of SnO2
(C6H5CH2)3Sn(L^2)Cl	I	473–653	45.0	45.0	Loss of 3 benzyl groups
	II	723–813	50.0	50.80	Loss of chlorine atom
	III	893–1003	74.0	75.29	Formation of SnO2
(p-ClC6H4CH2)3Sn(L^2)Cl	I	423–623	52.0	52.95	Loss of 3 p-chlorobenzyl groups
	II	703–753	57.0	57.92	Loss of chlorine atom
	III	873–973	78.0	78.87	Formation of SnO2
(C6H5CH2)2Sn(L^2)Cl2	I	493–653	32.0	33.04	Loss of 2 benzyl groups
	II	703–773	45.0	45.82	Loss of chlorine atoms
	III	873–993	71.0	72.79	Formation of SnO2
(p-ClC6H4CH2)2Sn(L^2)Cl2	I	473–653	40.0	40.43	Loss of 2 p-chlorobenzyl groups
	II	723–793	50.0	51.80	Loss of chlorine atoms
	III	873–973	75.0	75.80	Formation of SnO2