Research Article
Synthesis, Spectroscopic, and Biological Studies on New Zirconium(IV) Porphyrins with Axial Ligand
Table 3
Main infrared absorption frequencies of free base porphyrins, their corresponding metallated, and axially ligated Zr(IV) porphyrin complexes.
| Compound | IR (cm−1) | | | | | | | | | | | |
| TPP | 3326 | 2963 | — | 797 | 1349 | — | — | — | — | — | — | Cl2ZrTPP | — | 2960 | — | 800 | 1351 | — | 485 | — | — | — | — | SAZrTPP | — | 2961 | 662 | 800 | 1328 | 1731 | 485 | — | 1260 | 719 | 1379 | 5-SSAZrTPP | — | 2960 | 678 | 801 | 1336 | 1730 | 500 | 1156, 1074 | 1264 | 722 | 1378 | p-CH3TPP | 3416 | 2964 | — | 794 | 1350 | — | — | — | — | — | — | Cl2Zr(p-CH3TPP) | — | 2955 | — | 800 | 1339 | — | 508 | — | — | — | — | SAZr(p-CH3TPP) | — | 2956 | 683 | 800 | 1335 | 1735 | 510 | — | 1260 | 713 | 1377 | 5-SSAZr(p-CH3TPP) | — | 2954 | 685 | 803 | 1329 | 1729 | 517 | 1172, 1119 | 1261 | 715 | 1379 | p-ClTPP | 3428 | 2964 | — | 797 | 1354 | — | — | — | — | — | — | Cl2Zr(p-ClTPP) | — | 2962 | — | 803 | 1338 | — | 485 | — | — | — | — | SAZr(p-ClTPP) | — | 2961 | 658 | 801 | 1328 | 1729 | 488 | — | 1258 | 721 | 1377 | 5-SSAZr(p-ClTPP) | — | 2961 | 660 | 802 | 1336 | 1726 | 492 | 1181, 1124 | 1260 | 722 | 1378 | p-NO2TPP | 3449 | 2964 | — | 800 | 1329 | — | — | — | — | — | — | Cl2Zr(p-NO2TPP) | — | 2952 | — | 802 | 1332 | — | 482 | — | — | — | — | SAZr(p-NO2TPP) | — | 2945 | 654 | 800 | 1335 | 1728 | 483 | — | 1259 | 724 | 1375 | 5-SSAZr(p-NO2TPP) | — | 2938 | 667 | 806 | 1337 | 1725 | 487 | 1174, 1124 | 1261 | 728 | 1378 |
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