Chen Chong-An, Qiu Qi-Ming, Yang Guo-Yu
MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China.
Chem Asian J. 2021 Oct 18;16(20):3244-3248. doi: 10.1002/asia.202100869. Epub 2021 Sep 7.
A new acentric borate, K Na [{B O (OH)}-{B O (OH) }] ⋅ H O (1) has been made under solvothermal condition. 1 has layered structure made by B O (OH)-based chains and B O (OH) -bridging clusters. Second-harmonic generation (SHG) measurements reveal that 1 is a phase-matchable nonlinear optical (NLO) material, showing the SHG signal intensity of 1.8 times that of KDP (KH PO ). Besides, UV-Vis diffuse reflectance spectrum shows that 1 has the short deep UV (DUV) absorption cutoff edge of 198 nm. Thermogravimetric analysis reveals it has good thermal stability. Also 1 represents firstly mixed oxoboron clusters-made 2D layered borate with NLO property.
在溶剂热条件下制备了一种新型无中心硼酸盐KNa[{BO(OH)}-{BO(OH)}]⋅H₂O(1)。1具有由基于BO(OH)的链和BO(OH)桥连簇构成的层状结构。二次谐波产生（SHG）测量表明1是一种可相位匹配的非线性光学（NLO）材料，其SHG信号强度为KDP（KH₂PO₄）的1.8倍。此外，紫外可见漫反射光谱表明1具有198 nm的短深紫外（DUV）吸收截止边缘。热重分析表明它具有良好的热稳定性。而且1首次代表了具有NLO性质的由混合氧硼簇构成的二维层状硼酸盐。
