A New Anhydrous Polar Rare-Earth Iodate Fluoride, Ce(IO3)2F2, Exhibiting a Large Second-Harmonic-Generation Effect and Improved Overall Performance

A new anhydrous rare-earth metal iodate fluoride, Ce­(IO3)2F2, was rationally designed and synthesized. Ce­(IO3)2F2 features unique zigzag ∞[CeF2]2+ chains that are bridged by IO3 – groups, creating a complex three-dimensional structure, which is conducive to the orderly arrangement of the lone pair...

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Published inChemistry of materials Vol. 33; no. 8; pp. 2894 - 2900
Main Authors Zhang, Xiao-Han, Yang, Bing-Ping, Hu, Chun-Li, Chen, Jin, Huang, Qian-Ming, Mao, Jiang-Gao
Format Journal Article
LanguageEnglish
Published American Chemical Society 27.04.2021
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Summary:A new anhydrous rare-earth metal iodate fluoride, Ce­(IO3)2F2, was rationally designed and synthesized. Ce­(IO3)2F2 features unique zigzag ∞[CeF2]2+ chains that are bridged by IO3 – groups, creating a complex three-dimensional structure, which is conducive to the orderly arrangement of the lone pair of the functional IO3 – groups and reinforcing the polarity compared to the hydrous material Ce­(IO3)2F2(H2O). Ce­(IO3)2F2 possesses a large second-harmonic-generation effect that is ∼5.5 times larger than that of the benchmark KH2PO4, a wide transmission range of 0.45–11.4 μm, and a high laser damage threshold (116.8 MW cm–2). Anhydrous Ce­(IO3)2F2 is superior to the hydrous material and is a potential nonlinear optical material.
ISSN:0897-4756
1520-5002
DOI:10.1021/acs.chemmater.1c00222