Li Xingqi, Chu Dongdong, Jin Wenqi, Yang Zhihua, Pan Shilie, Mutailipu Miriding
Research Center for Crystal Materials, CAS Key Laboratory of Functional Materials and Devices for Special Environments, Xinjiang Technical Institute of Physics and Chemistry, CAS, 40-1 South Beijing Road, Urumqi 830011, China.
Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China.
Inorg Chem. 2022 Aug 8;61(31):12067-12072. doi: 10.1021/acs.inorgchem.2c02347. Epub 2022 Jul 27.
Borates with tunable structure and property currently provide a new rich source for solid-state chemistry and materials science. Realization of property improvement via simple structural regulation is a rising hot spot of borate-based research. Herein, a new aluminoborate fluoride, LiCsAlBOF, with [BO] clusters was discovered, and it was found to melt congruently. The optimally aligned [BO] dimers within [BO] clusters make LiCsAlBOF an enhanced birefringence, which is about 4.3× higher than its congener compound LiCsBO with same [BO] clusters. Structural analysis and additional theoretical calculations have revealed the origin of enhanced optical anisotropy.
