期刊
JOURNAL OF MATERIALS CHEMISTRY C
卷 9, 期 46, 页码 16664-16671出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1tc03864h
关键词
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资金
- National Natural Science Foundation of China [22161019, 21861018, 22061019, 21761012]
- Jiangxi Provincial Academic and Technical Leaders of the Main Disciplines [20182BCB22010]
- Natural Science Foundation of Jiangxi Province [20192ACBL20013, 20192BAB203001, 20202ACBL213001]
- Foundation of State Key Laboratory of Structural Chemistry [20180019]
- Program of Ganzhou Science and Technology Innovation Talents
- Program for Qingjiang Excellent Young Talents of Jiangxi University of Science and Technology
The reversible stimuli-responsive luminescence in the two newly reported bimetallic cuprous complexes 1 and 2 is triggered by the destruction and restoration of orderly molecular stacking, along with the loss and recovery of CH2Cl2 solvent molecules. This innovative reversible luminescence mechanism through breaking and rebuilding hydrogen bonds holds potential applications.
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 mu-eta(1)(N)eta(2)(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 center dot center dot center dot O hydrogen bonds around ClO4-, as supported by X-ray single-crystal analysis, the H-1 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.
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