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Stretchable Tb-Tb Distance Regulates the Piezofluorochromic Behavior of Chiral Tb(III)-MOF upon Compression. | LitMetric

Stretchable Tb-Tb Distance Regulates the Piezofluorochromic Behavior of Chiral Tb(III)-MOF upon Compression.

JACS Au

Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210046, China.

Published: May 2024

Luminescent chiral microcrystals with the Tb(COO) subunit indicated strong green mechano-luminescence under compression. Furthermore, piezofluorochromic behavior in the diamond anvil cell was observed, with the intensity tendency of decreasing-increasing-decreasing and a shortened lifetime upon compression, due to the reversible stretchable Tb-Tb interactions. The Tb-Tb distance upon compression was refined through situ high-pressure X-ray absorption spectra, which was consistent with the tendency of the piezofluorochromic intensity. high-pressure UV-vis absorption spectra, Fourier transform infrared spectra, and powder X-ray diffraction demonstrated the full recovery of after over 10 GPa compressions due to the semiflexible ligand. This work not only provided an ultrastable but also illustrated the relationship of the piezofluorochromic behavior with the detailed structural transformation for the first time.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11134353PMC
http://dx.doi.org/10.1021/jacsau.4c00259DOI Listing

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