Issue 46, 2021

Reversible stimuli-responsive luminescence of bimetallic cuprous complexes based on NH-deprotonated 3-(2′-pyridyl)pyrazole

Abstract

Color regulation of solid-state luminescence is desirable and challenging. Herein, we report two new three- and four-coordinate bimetallic cuprous complexes 1 and 2, which bear a NH-deprotonated 3-(2′-pyridyl)pyrazole adopting the monoanionic tridentate μ-η1(N)η2(N,N) bonding mode and exhibit reversible stimuli-responsive luminescence. It is revealed that the reversible stimuli-responsive luminescence for 1 and 2 is triggered by the destruction and restoration of orderly molecular stacking, along with the loss and recovery of the CH2Cl2 solvent molecules for 1. Virtually, this reversible stimuli-responsive luminescence originates from the breaking and rebuilding of various CH⋯O hydrogen bonds around ClO4, as supported by X-ray single-crystal analysis, the 1H NMR spectra, and the PXRD and FT-IR spectra in various forms. In addition, the possible applications of this reversible stimuli-responsive luminescence have also been investigated.

Graphical abstract: Reversible stimuli-responsive luminescence of bimetallic cuprous complexes based on NH-deprotonated 3-(2′-pyridyl)pyrazole

Supplementary files

Article information

Article type
Paper
Submitted
16 Aug 2021
Accepted
26 Oct 2021
First published
27 Oct 2021

J. Mater. Chem. C, 2021,9, 16664-16671

Reversible stimuli-responsive luminescence of bimetallic cuprous complexes based on NH-deprotonated 3-(2′-pyridyl)pyrazole

Y. Tong, X. Chen, L. He, J. Chen, S. Liu and H. Wen, J. Mater. Chem. C, 2021, 9, 16664 DOI: 10.1039/D1TC03864H

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