Volume 136, Issue 23 e202405399
Forschungsartikel

Efficient and Selective Construction of 412 Metalla-links Using Weak C−H⋅⋅⋅Halogen Interactions

Dr. Hai-Ning Zhang

Dr. Hai-Ning Zhang

Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, Department of Chemistry, Fudan University, 2005 Songhu Rd, 200438 Shanghai, P. R. China

These authors contributed equally.

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Xi Huang

Xi Huang

Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, Department of Chemistry, Fudan University, 2005 Songhu Rd, 200438 Shanghai, P. R. China

These authors contributed equally.

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Prof. Dr. Guo-Xin Jin

Corresponding Author

Prof. Dr. Guo-Xin Jin

Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, Department of Chemistry, Fudan University, 2005 Songhu Rd, 200438 Shanghai, P. R. China

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Dedicated to Professor Kazuyuki Tatsumi on the occasion of his 75th birthday
First published: 03 April 2024

Abstract

Through a coordination-driven self-assembly method, four metalla-links and one tetranuclear monocycle were constructed with high selectivity and yield by adjusting the substituent species of the building blocks, as evidenced using X-ray crystallographic analysis, electrospray ionization-time-of-flight/mass spectrometry (ESI-TOF/MS), elemental analysis and detailed solution-state nuclear magnetic resonance (NMR) spectroscopy. Based on X-ray crystallographic analysis and independent gradient model analysis, a significant factor leading to the formation of metalla-links was the introduction of F, Cl, Br and I atoms, which generated additional weak C−H⋅⋅⋅X (X=F, Cl, Br and I) interactions. Furthermore, the dynamic conversion of metalla-links to monocyclic rings in methanol solution was systematically investigated using quantitative 1H NMR techniques.

Conflict of interests

The authors declare no conflict of interest.

Data Availability Statement

Research data are not shared.

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