Journal
JOURNAL OF ORGANOMETALLIC CHEMISTRY
Volume 931, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jorganchem.2020.121628
Keywords
Luminescent iridium complexes; Mechanochromic luminescence; Near-infrared emission; Dinuclear iridium complex; Schiff base
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Funding
- China Postdoctoral Science Foundation [2019M651184]
- Fundamental Research Funds for the Central Universities [2412019QD007]
- Science and Technology Project of Jilin Provincial Education Department [JJKH20201167KJ]
- Key Scientific and Technological Project of Jilin province [20190701010GH]
- Development and Reform Commission of Jilin province [2020C035-5]
- National Natural Science Foundation of China [51902124, BSKJ201832]
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Two new near-infrared emissive iridium complexes were designed and synthesized in this study, both showing mechanochromic luminescent behavior attributed to physical phase transformations from amorphization to crystallization.
Iridium(III) complexes with near-infrared (NIR) emission are still less well developed. In this work, two new NIR emissive monoand dinuclear iridium complexes were designed and synthesized via introducing the tetraphenlyethene Schiff base ligands. Interestingly, both complexes display mechanochromic luminescent (MCL) behavior, and the MCL mechanism can be attributed to the atypical physical phase transformations from amorphization to crystallization. (C) 2020 Published by Elsevier B.V.
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