A new alkaline-earth metal borate SrB3O4(OH)3 • H2O with UV cutoffedge below 190 nm

被引：7

作者：

Zhou, Hong-Jun ^{[1
]}

Chang, Li-Xian ^{[1
]}

Zhang, Yan-Hui ^{[1
]}

Wang, Li ^{[1
]}

Kurmoo, Mohamedally ^{[2
]}

机构：

[1] Xinjiang Normal Univ, Coll Chem & Chem Engn, Urumqi 830054, Peoples R China

[2] Univ Strasbourg, Inst Chim Strasbourg, CNRS UMR 7177, 4 Rue Blaise Pascal, F-67070 Strasbourg, France

来源：

INORGANIC CHEMISTRY COMMUNICATIONS | 2018年 / 92卷

关键词：

Borate; Deep ultraviolet; Hydrothermal reaction; FUNDAMENTAL BUILDING-BLOCK; NONLINEAR-OPTICAL MATERIAL; CRYSTAL STRUCTURE; CS; RB;

D O I：

10.1016/j.inoche.2018.04.002

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A new alkaline-earth metal borate SrB3O4(OH)(3) center dot H2O, has been successfully synthesized using the hydrothermal method. Single-crystal X-ray diffraction analysis reveals that it crystallizes in the centrosymmetric space group P2(1)/c, a = 6.249(4) angstrom, b = 11.459(6) angstrom, c = 8.749(5) angstrom, beta = 108.493(6)degrees, Z = 4. SrB3O4(OH)(3) center dot H2O contains infinite [B3O4(OH)(3)](2-) chains along the c axis direction extended by the B3O8 units with Sr2+ cations filling the space between these chains. There are inter-chain hydrogen-bonds leading to a compact 3D structure. SrB3O4 (OH)(3) center dot H2O possesses a large experimental band gap of 6.15 eV and a short wavelength cutoff edge lower than 190 nm (183 nm) as found by the UV-vis-NIR diffuse reflectance spectrum. The calculated band structure and the density of states of SrB3O4(OH)(3) center dot H2O suggest that its indirect energy gap is 5.76 eV which agrees with the experimental result. The thermal behavior and the IR spectrum of SrB3O4(OH)(3) center dot H2O are also reported in this work. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：35 / 39

页数：5

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