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Tytuł:
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Two bismuth iodate sulfates with enhanced optical anisotropy.
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Autorzy:
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Li Y; State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China. .; School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.; Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China.; University of Chinese Academy of Sciences, Beijing 100049, China.
Hu C; State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China. .
Chen J; State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China. .; University of Chinese Academy of Sciences, Beijing 100049, China.
Mao J; State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China. .
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Źródło:
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Dalton transactions (Cambridge, England : 2003) [Dalton Trans] 2021 Nov 16; Vol. 50 (44), pp. 16139-16146. Date of Electronic Publication: 2021 Nov 16.
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Typ publikacji:
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Journal Article
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Język:
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English
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Imprint Name(s):
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Original Publication: Cambridge, UK : Royal Society of Chemistry, c2003-
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Entry Date(s):
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Date Created: 20211022 Latest Revision: 20211117
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Update Code:
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20240105
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DOI:
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10.1039/d1dt02514g
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PMID:
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34677566
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Two bismuth iodate sulfates crystallizing in the monoclinic space group P 2 1 / c , namely, Bi(IO 3 )(SO 4 ) and CdBi(IO 3 )(SO 4 ) 2 , were synthesized via solvothermal reactions. Bi(IO 3 )(SO 4 ) features 2D [Bi(SO 4 )] + layers, which are further linked by the IO 3 - groups to form a 3D network. CdBi(IO 3 )(SO 4 ) 2 exhibits 1D [IO 3 ] - chains built from IO 4 3- groups via corner-sharing and is the first example of a polyiodate sulfate as far as we know. These [IO 3 ] - chains are interconnected by Bi 3+ cations into [Bi(IO 3 )] 2+ layers parallel to the bc plane, whereas the neighbouring Cd 2+ cations are interconnected by bridging SO 4 2- anions into [Cd(SO 4 ) 2 ] 2- layers, also parallel to the bc plane. These cationic and anionic 2D layers are held together through Bi-O-S bridges into a complicated 3D framework. Bi(IO 3 )(SO 4 ) and CdBi(IO 3 )(SO 4 ) 2 show wide band gaps of 3.91 and 4.03 eV and large birefringence values of 0.087 and 0.100 at 1064 nm, respectively. Our work indicates that the introduction of iodate group and lone pair cations, such as Bi 3+ , into metal sulfates can greatly enhance their birefringent properties.
