Issue 41, 2024

Copper complexation of rosarin: formation of bis-copper rosarin and mono-copper linear tridipyrrin complexes

Abstract

A novel rosarin di-Cu complex 2Cu-1 and a linear six-pyrrolic mono-copper complex 1Cu-1 were synthesized using rosarin as the ligand. The molecular conformations of these complexes were confirmed by X-ray crystallography. The optical study of 1Cu-1 indicated NIR-II absorption due to the long six-pyrrolic ligand and the ICT effect. The 2Cu-1 complex exhibited a very narrow electronic reduction–oxidation gap of 0.50 eV, attributed to the antiaromatic characteristics of the rosarin ring. The first HER study of the di-copper rosarin complex 2Cu-1 indicated that the multi-metal poly-pyrrolic complexes are promising molecular hydrogen evolution reaction catalysts.

Graphical abstract: Copper complexation of rosarin: formation of bis-copper rosarin and mono-copper linear tridipyrrin complexes

Supplementary files

Article information

Article type
Paper
Submitted
29 Jul 2024
Accepted
26 Sep 2024
First published
27 Sep 2024

Dalton Trans., 2024,53, 16879-16884

Copper complexation of rosarin: formation of bis-copper rosarin and mono-copper linear tridipyrrin complexes

X. Lv, L. Qian, N. V. Tkachenko, T. Zhang, F. Qiu, N. Aratani, T. Ikeue, J. Pan and S. Xue, Dalton Trans., 2024, 53, 16879 DOI: 10.1039/D4DT02161D

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