Supramolecular Self-Assembly of the Zwitterionic Sn(IV)-Porphyrin Complex

[Sn(OSO3)2(TPyHP)](HSO4)2∙8H2O (1), an ionic Sn(IV)-porphyrin complex, was prepared by reacting [Sn(OH2)2TPyP] with dilute sulfuric acid. X-ray structural analysis revealed that the zwitterionic [Sn(OSO3)2TPyHP]2+ species consists of two anionic axial Sn–O–SO3 units and four peripheral pyridinium moieties, overall dicationic charge balanced hydrogen sulfate (HSO4−) counter-anions. Ionic bonding between oxygen atoms sulfato ligands groups adjacent cations led to formation a 1D channel filled counter-anions water molecules. The supramolecular self-assembly 1 further characterized using various spectroscopic techniques, including 1H NMR spectroscopy, elemental analysis, ESI-mass spectrometry, UV-vis fluorescence FT-IR thermogravimetric (TGA), powder diffractometry. complex is structurally well-defined complementary scaffold involved in self-assembly. This novel class ion-assembled metalloporphyrin potential functional porphyrin material used ion exchange applications.