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The FTIR analysis of the complexes.
| vibration | bands ν (cm−1) | |||||
| attribution | 3 | 4 | 5 | 8 | 9 | 12 |
| ν(C–H) | 2956.4 | 2954.8 | 2956.7 | 2961.7 | 2957.8 | 2963.9 |
| ν(nitrile) | – | – | – | – | – | 2250.8 |
| ν(C=N) | 1645.4 | 1641.6 | 1637.4 | 1638.2 | 1642.2 | 1635.4 |
| ν(C–N) | 1350.2 | 1355.3 | 1436.7 | 1345.7 | 1377.8 | 1545.2 |
| δ(CH3) | 1205.2 | 1210.0 | 1201.0 | – | 1200.4 | 1260.3 |
| ν(P–C) | – | – | 1094.9 | – | – | – |
| ν(C–O) | 1016.1 | 1012.9 | 1011.0 | 1023.2 | 1030.8 | 1018.8 |
| δ(C–H) | 760 | 766.2 | 692.3 | 773.6 | 776.0 | – |
| δ(Pd–N) | – | 510.9 | 513.4 | 525.2 | 573 | – |
