Ma Wenjuan, Zhang Jie, Yu Feng, Dai Bin
Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China.
Department of Physics, Changji University, Changji 931100, China.
Inorg Chem. 2022 Oct 24;61(42):16533-16538. doi: 10.1021/acs.inorgchem.2c03039. Epub 2022 Oct 10.
The design of new materials is important for the exploration of compounds with good properties. Borates have attracted extensive attention because of their excellent properties and rich structures. Herein, two new zincoborates NaKZn(BO) and β-KZnBO with fundamental building blocks (FBBs) as the isolated [BO] group were synthesized. The polymerization degree of B-O units is regulated by cations and [ZnO] polyhedra, and the structural arrangement is further affected, to improve the properties. The transmittance spectra show that NaKZn(BO) and β-KZnBO have deep ultraviolet (UV) cutoff edge (183 nm, 181 nm), and theoretical calculations indicate their birefringence is 0.012 and 0.029 at 1064 nm, respectively. Indicating that NaKZn(BO) has the potential to be used as a deep-UV waveplate material. More importantly, we analyzed the reason why the birefringence of β-KZnBO is twice that of NaKZn(BO) from the perspective of structure. These results are important for the design of optical materials.
新型材料的设计对于探索具有优良性能的化合物至关重要。硼酸盐因其优异的性能和丰富的结构而备受广泛关注。在此，合成了两种以基本结构单元（FBBs）为孤立[BO]基团的新型锌硼酸盐NaKZn(BO)和β-KZnBO。B-O单元的聚合度由阳离子和[ZnO]多面体调节，结构排列进一步受到影响，从而改善性能。透过光谱表明，NaKZn(BO)和β-KZnBO具有深紫外（UV）截止边（183nm，181nm），理论计算表明它们在1064nm处的双折射分别为0.012和0.029。表明NaKZn(BO)有潜力用作深紫外波片材料。更重要的是，我们从结构角度分析了β-KZnBO的双折射是NaKZn(BO)两倍的原因。这些结果对光学材料的设计具有重要意义。
