Tang Ru-Ling, Wei Yu-Long, Chi Yang, Shi Zhi-Hui, Liu Wenlong, Guo Sheng-Ping
School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, Jiangsu, P. R. China.
School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P. R. China.
Inorg Chem. 2022 Jun 13;61(23):8653-8661. doi: 10.1021/acs.inorgchem.2c00033. Epub 2022 May 27.
Chalcogenide borates have been developed and are considered an attractive system due to their favorable physical properties such as magnetism and nonlinear optical effects. Here, isostructural RENbMgSBO (RE = La-Nd) compounds in the title family have been obtained through cation regulation in rare-earth and VB group metals. This family crystalizes in the centrosymmetric 3̅ space group and features 3D frameworks formed by {[Mg(NbBO)]} polyanionic layers and QRE octahedra. The structural chemistry was characterized and theoretical calculations were performed to understand the structural merit of this family. In addition, RENbMgSBO possess the largest band gaps among known rare-earth chalcogenide borates, and they all show antiferromagnetic-like behaviors.
硫属硼酸盐已得到发展，由于其具有诸如磁性和非线性光学效应等良好的物理性质，被认为是一个有吸引力的体系。在此，通过稀土和VB族金属中的阳离子调控，获得了标题族中的同构RENbMgSBO（RE = La - Nd）化合物。该族化合物结晶于中心对称的3̅空间群，其特征是由{[Mg(NbBO)]}聚阴离子层和QRE八面体形成的三维框架。对其结构化学进行了表征，并进行了理论计算以了解该族化合物的结构优点。此外，RENbMgSBO在已知的稀土硫属硼酸盐中具有最大的带隙，并且它们都表现出类反铁磁行为。
