Table 3 13C and 1H NMR (DMSO-d6) data of the ligand 11 and those of the complexes 12 and 13
Positions | Ligand 11 | Complex 12 | Complex 13 | |||
|---|---|---|---|---|---|---|
δ 13C in ppm | δ 1H in ppm | δ 13C in ppm | δ 1H in ppm | δ 13C in ppm | δ 1H in ppm | |
2 | 154.5 | – | – | – | 155.4 | – |
3 | 154.2 | – | – | – | 154.9 | – |
3-COOH | 184.8 | – | 179.9 | – | 185.6 | – |
4 | 148,4 | – | 149.6 | – | 148.1 | – |
5 | 119.7 | 6.94 | 129.1 | 8.83 | – | 7.54 |
1′ | 115.6 | – | 115.2 | – | 115.2 × 2 | – |
2′ | 155.5 | – | 156.0 | – | 156.7 | – |
2′-OH | – | 2.99 | – | – | – | – |
3′ | 117.7 | 7.46–7.49 | 117.0 | 7.41–7.47 | 117.2 × 2 | 7.34–7.42 |
4′ | 136,0 | 7.74–7.85 | 135.3 | 7.73–7.81 | 135.7 | 7.71–7.80 |
5′ | 126.0 | 7.46–7.49 | 125.3 | 7.41–7.47 | 125.7 × 2 | 7.34–7.42 |
6′ | 129.5 | 8.69 | 129.6 | 8.87 | 129.9 | 8.83 |
1″ | 134.9 | – | 134.4 | – | – | – |
2″ | 136,8 | 7.74–7.85 | – | 7.73–7.81 | 7.71–7.80 | |
3″ | 120.3 | – | – | – | 119.4 | – |
3″-COCH3 | 205.1 | – | 195.0 | – | 192.4 | – |
3″-COCH3 | 28.1 | 2.60 | 39.1 | 2,63 | 39.9 39.8 | 2.63 2.61 |
4″ | 161.3 | – | 156.5 | – | 161.4 | – |
4″-OH | – | 11.93 | – | – | – | – |
5″ | 118.1 | 6.91 | – | 7.41–7.47 | – | 7.51 |
6″ | 132.0 | 7.74–7.85 | – | 7.73–7.81 | – | 7.71–7.80 |