Issue 7, 2022

Synthesis, structure and aromaticity of metallapyridinium complexes

Abstract

The first rhena-analogues of pyridinium (cyclopropametalla-2-isoquinolinium complexes) are obtained from o-ethynyl benzonitriles. Structural analysis and DFT calculations confirm their aromatic nature. Compared to rhenapyrylium, rhenapyridinium has a slightly stronger Hückel π-aromaticity, while a chlorine substituent on the rhenapyridinium ring decreases its aromaticity, which is revealed by NICS, EDDB, MCI and ΔBV(ELFπ) analysis.

Graphical abstract: Synthesis, structure and aromaticity of metallapyridinium complexes

Supplementary files

Article information

Article type
Paper
Submitted
05 Dec 2021
Accepted
18 Jan 2022
First published
18 Jan 2022

Dalton Trans., 2022,51, 2876-2882

Synthesis, structure and aromaticity of metallapyridinium complexes

Y. Wang, Y. Sun, W. Bai, Y. Zhou, X. Bao and Y. Li, Dalton Trans., 2022, 51, 2876 DOI: 10.1039/D1DT04096K

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