Sn(IV) porphyrins ([Sn(IV)TTP(3PyO)2] (5) and [Sn(IV)TPP(3PyO)2] (6) [tetrathienylporphyrin (TTP), tetraphenylporphyrin (TPP), and pyridyloxy (PyO)]) were prepared and characterized and their photocytotoxicity upon irradiation with 625 nm light has been studied. The presence of the 3PyO axial ligands was found to limit the aggregation and enhance the solubility of 5 and 6 in DMF/H2O (1 : 1). The photophysical
Sn( IV ) 卟啉 ([Sn( IV )TTP(3PyO) 2 ] ( 5 ) 和 [Sn( IV )TPP(3PyO) 2 ] ( 6 ) [四噻吩基卟啉 (TTP)、四苯基卟啉 (TPP) 和吡啶氧基 (PyO) )]) 的制备和表征,并研究了它们在 625 nm 光照射下的光细胞毒性。发现3PyO轴向配体的存在限制聚集并增强5和6在DMF/H 2 O(1:1)中的溶解度。比较了内消旋-2-噻吩基和内消旋-苯基取代的Sn( IV )卟啉的光物理性质和光动力治疗(PDT)活性。当用 Thorlabs M625L3 LED 在 625 nm 照射时,发现5和6在 MCF-7 癌细胞中具有光细胞毒性,但在黑暗中保持无毒。发现Sn( IV )内消旋-四-2-噻吩基卟啉5的 PDT 活性相对于其类似的四苯基卟啉6显着增强。由于内消旋-2-噻吩基环,5的Q 00带明显红移至治疗窗口,并且5在DMF中具有异常高的单线态氧量子产率值0