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

Table 2

Selected infrared data of the ligands (cm⁻¹).

	υ(N–H)	υ(C=N)	υ(C–N); δ(N–H)	υ(N=N)	δ(N–H)	υ(N–N)
L1	3431	1600	1456	1373	1222	1072
L2	3430	1598	1443	1376	1249	1071
L3	3421	1598	1487	1375	1247	1072
L4	3433	1601	1442	1375	1192	1080
L5	3447	1598	1502	1365	1226	1098
L6	3429	1596	1497	1364	1221	1070
L7	3449	1594	1454	1359	1211	1066
L8	3346	1597	1444	1346	1240	1060
L9	3430	1595	1446	1346	1182	1109
L10	3448	1594	1445	1320	1260	1089
L11	3441	1595	1446	1359	1251	1072
L12	3408	1594	1451	1360	1281	1067