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

IF 0.6 Q4 CHEMISTRY, ORGANIC

Molbank Pub Date : 2023-09-12 DOI:10.3390/m1723

Nirmal Kumar Shee, Hee-Joon Kim

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引用次数: 0

Abstract

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

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两性离子锡-卟啉配合物的超分子自组装

[Sn(OSO3)2(TPyHP)](HSO4)2∙8H2O(1)是一种离子型Sn(IV)-卟啉络合物，由[Sn(OH2)2TPyP]与稀硫酸反应而得。x射线结构分析表明，两性离子[Sn(OSO3)2TPyHP]2+由两个阴离子的轴向Sn - o - so3单元和四个外围的吡啶基团组成，总体上由两个硫酸氢(HSO4−)反阴离子平衡。轴向磺胺配体的氧原子与相邻Sn(IV)-卟啉阳离子的外围吡啶基团之间的离子氢键导致形成充满反阴离子和水分子的一维通道。利用各种光谱技术，包括1H NMR光谱、元素分析、esi -质谱、UV-vis光谱、荧光光谱、FT-IR光谱、热重分析(TGA)和粉末x射线衍射，进一步表征了1的超分子自组装。两性离子[Sn(OSO3)2TPyHP]2+配合物是一种结构明确的互补支架，参与超分子自组装。这种新型的离子组装金属卟啉是一种潜在的用于离子交换应用的功能卟啉材料。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Molbank Chemistry-Physical and Theoretical Chemistry

CiteScore

0.70

自引率

33.30%

发文量

174

审稿时长

11 weeks

期刊介绍： •organic synthesis •biosynthesis •extraction and purification •natural product derivatives •structural elucidation (X-ray crystallography, NMR, etc.)