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.
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)。
