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Licensed Unlicensed Requires Authentication Published by De Gruyter November 8, 2023

Synthesis, structures and photophysical properties of two new Cu(I) complexes

  • Xiaojuan Sun and Zhiqiang Wang EMAIL logo
From the journal Zeitschrift für Naturforschung B
https://doi.org/10.1515/znb-2023-0046

Abstract

Two cationic heteroleptic four-coordinate Cu(I) complexes were successfully synthesized and characterized by 1H NMR, 13C NMR, 31P NMR spectroscopy and mass spectrometry. The crystal structures of the complexes have been determined by single-crystal X-ray diffraction. UV/Visible absorption spectra of these complexes show ligand-centered π-π* and charge transfer transitions. In the solid state the complexes show intense emissions with microsecond-scale lifetime and relatively high efficiency at room temperature. The photophysical behavior at T = 298 and 77 K indicates that the emissions of these complexes are thermally activated delayed fluorescence mixed with phosphorescence.

Keywords: Cu(I) complexes; crystal structures; thermally activated delayed fluorescence; phosphorescence
Corresponding author: Zhiqiang Wang, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, P. R. China, E-mail:

Acknowledgments

We thank Jiange Wang for the single-crystal structure determinations.

  1. Research ethics: Not applicable.

  2. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  3. Competing interests: The authors declare no conflict of interest regarding this article.

  4. Research funding: None declared.

  5. Data availability: The raw data can be obtained on request from the corresponding author.

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Received: 2023-06-13
Accepted: 2023-08-28
Published Online: 2023-11-08
Published in Print: 2023-11-27

© 2023 Walter de Gruyter GmbH, Berlin/Boston

From the journal
Zeitschrift für Naturforschung B
Zeitschrift für Naturforschung B
Volume 78 Issue 11-12

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