Two Indium Iodate–Nitrates with Large Birefringence Induced by Hybrid Anionic Functional Groups and Their Favorable Arrangements

Two new indium iodate–nitrates, In­(IO3)2(NO3) (1) and [In­(IO3)­(OH)­(H2O)]­(NO3) (2), were rationally designed through the integration of hybrid anionic functional units. They exhibit large birefringences (1, 0.269; 2, 0.188, at 532 nm) and wide band gaps (1, 4.08 eV; 2, 4.39 eV), which is attribu...

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Published inInorganic chemistry Vol. 61; no. 8; pp. 3374 - 3378
Main Authors Huang, Yu, Jiang, Ting-kun, Yang, Bing-Ping, Hu, Chun-Li, Fang, Zhi, Mao, Jiang-Gao
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 28.02.2022
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Summary:Two new indium iodate–nitrates, In­(IO3)2(NO3) (1) and [In­(IO3)­(OH)­(H2O)]­(NO3) (2), were rationally designed through the integration of hybrid anionic functional units. They exhibit large birefringences (1, 0.269; 2, 0.188, at 532 nm) and wide band gaps (1, 4.08 eV; 2, 4.39 eV), which is attributed to the synergistic effect of two types of birefringence-active units, namely, lone-pair IO3 and π-conjugated NO3 anionic groups. Through the substitution of OH and H2O of 2 with IO3, the hydrogen bonds of 2 are eliminated and the birefringence of 1 is greatly enhanced, highlighting the intriguing role of isovalent substitution in the discovery of fascinating optical materials.
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ISSN:0020-1669
1520-510X
1520-510X
DOI:10.1021/acs.inorgchem.2c00079