CsSbF2 SO4 : An Excellent Ultraviolet Nonlinear Optical Sulfate with a KTiOPO4 (KTP)-type Structure

Angewandte Chemie
Xuehua DongGuohong Zou

Abstract

A novel noncentrosymmetric (NCS) polar fluoride sulfate, CsSbF2 SO4 , was obtained by ionothermal synthesis. A meticulously designed co-substitution approach was used to successfully replace the [TiO6 ]8- and [PO4 ]3- functional groups in KTiOPO4 (KTP) with [SbO4 F2 ]7- and [SO4 ]2- units, respectively. The structure of CsSbF2 SO4 features a pseudo-3D framework consisting of interconnected 1D [SbF2 O2 SO4 ]5- chains of corner-sharing [SbO4 F2 ]7- octahedra and [SO4 ]2- tetrahedra. The title compound exhibits a sharply enlarged band gap compared to its parent compound, KTP, benefitting from the introduction of F- ions and the displacement of Sb3+ cations. Second harmonic generation (SHG) measurements manifested that CsSbF2 SO4 is phase-matchable and revealed a strong SHG response of about 3.0 KH2 PO4 (KDP), which is the highest value reported for any metal sulfate reported to date. The reported fluoride sulfate is a promising near ultraviolet (UV) nonlinear optical (NLO) material.

References

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Citations

Jul 3, 2019·Chemical Communications : Chem Comm·Zhiyong BaiZhoubin Lin
Jan 8, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·Xianghe MengMingjun Xia
Feb 20, 2020·Chemical Communications : Chem Comm·Minqiang GaiShilie Pan
Oct 10, 2019·Chemistry : a European Journal·Hongil Jo, Kang Min Ok
Oct 22, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Philip NetzschHenning A Höppe
Nov 22, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Yuandan DengZhien Lin
Apr 4, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·Fangfang HeGuohong Zou
Sep 22, 2020·Chemistry, an Asian Journal·Xinglong Chen, Kang Min Ok
Dec 11, 2020·Chemistry : a European Journal·Yangxin ChenJunhua Luo
Feb 25, 2021·Journal of the American Chemical Society·Chao WuChi Zhang
Jan 28, 2021·Chemistry : a European Journal·Yi HuangShilie Pan
Mar 30, 2021·Inorganic Chemistry·Yuan-Bin FangXin-Tao Wu
May 28, 2021·Accounts of Chemical Research·Jin ChenJiang-Gao Mao

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