Ba_(2)B_(9)O_(13)F_(4)·BF_(4):first fluorooxoborate with unprecedented infinite [B_(18)O_(26)F_(8)] tubes and deep-ultraviolet cutoff edge  

作　　者：Huan Pei Xuefei Wang Jie Zhang Fangfang Zhang Zhihua Yang Shilie Pan 

机构地区：[1]Research Center for Crystal Materials,CAS Key Laboratory of Functional Materials and Devices for Special Environments,Xinjiang Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Urumqi 830011,China [2]Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Science China Chemistry》2023年第4期1073-1077,共5页中国科学（化学英文版）

基　　金：supported by the National Key Research Project of China(2022YFE0134500);the National Natural Science Foundation of China(61922084,61835014);the West Light Foundation of Chinese Academy of Sciences(2019-YDYLTD-002);the Instrument Developing Project of Chinese Academy of Sciences(GJJSTD20200007);the Xinjiang Major Science and Technology Project(2021A01001);the International Partnership Program of Chinese Academy of Sciences(1A1365KYSB20200008);the Science and Technology Service Network Initiative of Chinese Academy of Sciences(KFJ-STS-QYZD-130)。

摘　　要：Fluorooxoborate has emerged as a promising system for exploring optical materials due to their rich structural chemistry and physicochemical properties,yet so far not fully studied.Herein,we report a new fluorooxoborate,Ba_(2)B_(9)O_(13)F_(4)·BF_(4),which contains the greatest variety of structural basic units,[BO_(3)],[BO_(2)F_(2)],[BO_(3)F],and[BF_(4)],and exhibits unprecedented 1D infinite[B_(18)O_(26)F_(8)]tubes.The unique structure avoids the dangling bonds caused by terminal oxygens,which is beneficial to the large bandgap and deep-ultraviolet cutoff edge.This article expands the crystal structure of fluorooxoborates and contributes to the exploration of deep-ultraviolet optical materials in fluorooxoborate systems.

关 键 词：fluorooxoborate unprecedented infinite tubes four basic units deep-ultraviolet 

分 类 号：TB34[一般工业技术—材料科学与工程]