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

Table 6

Selected infrared data of complexes (cm⁻¹).

Complexes	υ(O–H)	υ(N–H)	υ(C=N)	υ(C–N) + δ(N–H)	υ(N=N)	δ(N–H)	υ(N–N)
Sc-L1	3425	overlap	1598	1503	1365	1225	1079
Ce-L1	3427	overlap	1596	1499	1397	1248	1069
Sc-L2	3445	3208	1613	1493	1360	1281	1067
Y-L4	3445	3300	1610	1503	1381	1227	1097
Ce-L4	3611	overlap	1648	1457	1372	1228	1157
Y-L5	3748	overlap	1609	1505	1382	1235	1156
Sc-L7	3450	3331	1596	1490	1382	1235	1072
La-L7	3423	overlap	1606	1499	1379	1253	1089
Y-L8	3455	3395	1597	1512	1345	1224	1062
La-L8	3538	3342	1594	1511	1382	1246	1105
Sc-L9	3500	3448	1617	1492	1365	1242	1113
Y-L9	3540	3116	1592	1444	1361	1210	1168
La-L9	3523	overlap	1609	1494	1383	1211	1020
Ce-L9	3413	3115	1591	1489	1356	1208	1168
Sc-L12	3435	overlap	1594	1491	1360	1290	1067
Y-L12	3427	overlap	1596	1499	1379	1248	1069
La-L12	3430	3430	1603	1496	1383	1347	1106
Ce-L12	3500	3412	1653	1492	1383	1299	1087