Research Article
Synthesis and Spectral Characterization of Praseodymium(III) Complex with New Amino Acid-Based Azo Dye
Table 2
Stretching frequencies (cm−1) of functional groups of L1 and Pr(III) complex.
| | Ligands/complexes | O–H | C=O | N=N | C–N | Aromatic group | C=C | Pr–N |
| | L1 | 3368.60 | 1599.56 | 1597.72 | 924.44 | 1508.56, 1435.13, 1351.09, 1314.28 | 748.08 | | | Pr | 3400.22 | 1624.09 | 1620.07 | 941.71 | 1518.46, 1436.01, 1349.98 | 739.16 | 453.75 |
|
|
