Nd₂O₃, Cr₂O₃, and V₂O₃ Nanoparticles via Calcination: Synthesis, Characterization, Antimicrobial and Antioxidant Activities

Table 5

Thermal analysis of metal compounds.

Compounds	TG range (°C)	DTG (°C)	Mass loss (%)		Assignment
			Calc. (%)	Found (%)
[Nd(BDC)(ADMPY)(OAc)].H2O 1	51–140	105	3.54	3.10	Loss of hydrated water
	142–200	147	11.60	10.76	Loss of acetate group
	202–303	247	24.21	24.68	Loss of ADMPY
	305–550	410	32.27	28.76	Loss of BDC
	—	—	33.08	32.70	The residue (1/2 Nd2O3)
[Cr(BDC)(ADMPY)Cl]. H2O 2	54–120	100	4.58	3.66	Loss of 2 H2O
	122–212	155	9.02	8.10	Loss of chloride ion
	214–382	379	73.14	69.32	Loss of organic ligands
	384–550	400
	—	—	19.34	18.92	The residue (1/2 Cr2O3)
[V(BDC)(ADMPY)Cl]. H2O 3	40–128	77	4.60	4.12	Loss of hydrated water
	130–226	198	9.05	8.76	Loss of chloride ion
	228–329	298	31.44	30.55	Loss of ADMPY
	331–550	405	41.90	36.74	Loss of BDC
	—	—	19.13	20.83	The residue (1/2 V2O3)

1, 2, and 3 are the numbers of three compounds.