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王维课题组 | CHEMISTRY-A EUROPEAN JOURNAL

发布人:    发布时间:2023/03/09   浏览次数:

Hierarchically Organized Cocrystal of Tetra-Anionic Porphyrin and Di-Cationic Viologen: Ion Conformations, Supramolecule Interactions, and Porphyrin Arrays

作者:

Zeng, D (Zeng, Dong) [1] , [2] ; Hu, HF (Hu, Hui-Fen) [1] , [2] ; Ming, JB (Ming, Jiang-Bo) [3] ; Wang, W (Wang, Wei) [1] , [2]

DOI

10.1002/chem.202203188

在线发表

FEB 2023

已索引

2023-03-05

文献类型

Article; Early Access

摘要

Ionic co-assembly of tetra-anionic porphyrins has been extensively researched in the construction of hierarchically organized architectures with potential application value in organic semiconductors, sunlight catalysts and supramolecular chirality systems. However, such architectures are difficult to grow to a size suitable for single-crystal X-ray diffraction (SCXRD); the lack of single-crystal structures of these architectures leads to challenges in gaining deeper comprehension about that. This study reports a hierarchically organized cocrystal of meso-tetra(4-sulfonato-phenyl)-porphyrin (TSPP4-) and N, N '-diethyl-viologen (DEV2+), wherein wave-like and saddle-like TSPP4- ions co-aggregate at a stoichiometric ratio of 1 : 2 to form unique porphyrin arrays; the spectrum characteristics and calculated coulombic exciton coupling energy show that these porphyrin arrays are J-aggregates. We prove that the distortion of porphyrin ring of TSPP4- strongly correlates with the deflection of its phenyl groups. The crystal comprises six different ionic conformations, and the multiplicity of ionic conformation leads to intricate supramolecular interactions.