Synthesis Characterization and Biological Activity Study of New Schiff and Mannich Bases and Some Metal Complexes Derived from Isatin and Dithiooxamide

Table 3

Suggested thermal decomposition steps of C₂ and C₆.

Stable phase (M.wt); [CoLI (NO3)2]·H2O (C2) (549.193)	Temp. range of decomp. at TG °C	Peak temp. at DTG °C	%weight loss found (calc.)
H2O (Lattice)	70–120	—	2.91; (3.27)
NO3	120–220	200	11.62; (11.97)
C15N4H16O2S2; NO2	220–600	—	71.38; (71.80)
CoO	—	—	13.28; (13.64)
[Ir(LI)2Cl2]Cl·(0.5)H2O (C6)(1004.24)
0.5H2O (lattice); C8N2H16O2	80–250	190	17.43; (17.62)
3Cl; C9N2H8	250–500	399	24.07; (24.94)
C10N3H6OS2	500–700	515	24.48; (24.69)
C2NS2H2	700–830	760	13.30; (13.14)
Ir	—	—	19.83; (19.12)