Lanthanide Complexes of Substituted 𝜷-Diketone Hydrazone Derivatives: Synthesis, Characterization, and Biological Activities

Table 7

Thermogravimetric results of the complexes.

Complexes	Hygroscopic water				Coordinated water
	T/°C	% Weight loss		No. of water molecule	T/°C	% Weight loss		No. of water molecule
		found	calc			found	calc
Sc[L1(NO3)3 (H2O)]	—	—	—	—	130–235	2.62	2.78	1
Ce[L1(NO3)3 (H2O)2]	—	—	—	—	Up to 220	4.89	4.72	2
Sc[L2(NO3)2 (NH3)2]NO3	—	—	—	—	—	—	—	—
Y[L4(H2O)5](NO3)3·3H2O	92	6.18	6.49	3	130–210	9.20	10.82	5
Ce[L4(H2O)5](NO3)3·8H2O	90	14.20	12.80	8	130–210	10.20	9.25	5
Y[L5(NO3)3 (H2O)2]	—	—	—	—	160–210	3.99	4.78	2
Sc[L7(NO3)(H2O)3](NO3)2	—	—	—	—	170–220	6.42	7.38	3
La[L7(NO3)(H2O)3](NO3)2	—	—	—	—	180–240	6.49	6.08	3
Y[L8(NO3)3 (NH3)]·0.5H2O	98	1.13	1.16	0.5	—	—	—	—
La[L8(H2O)5](NO3)3	—	—	—	—	190–250	11.63	10.11	5
Sc[L9(H2O)4](NO3)3·7H2O	90	14.60	13.42	7	140–210	6.22	7.67	4
Y[L9(NO3)3 (C2H5OH)2]	—	—	—	—	—	—	—	—
La[L9(NO3)2 (H2O)3](NO3)·4H2O	85	7.00	7.49	4	130–160	5.58	5.62	3
Ce[L9(H2O)5](NO3)3·H2O	105	2.47	1.95	1	160–220	8.95	9.73	5
Sc[L12(H2O)4](NO3)3·H2O	100	2.05	2.10	1	160–260	9.19	8.39	4
Y[L12(NO3)3 (C2H5OH)2]	—	—	—	—	—	—	—	—
La[L12(H2O)5](NO3)3·3H2O	95	4.00	5.37	3	130–160	11.70	10.95	5
Ce[L12(NO3)2(H2O)3](NO3)·H2O	100	2.17	1.95	1	130–220	5.20	5.86	3