From BaAlBO<sub>3</sub>F<sub>2</sub> to BaAlB<sub>3</sub>O<sub>6</sub>F<sub>2</sub> and BaAl<sub>2</sub>(B<sub>3</sub>O<sub>6</sub>)<sub>2</sub>F<sub>2</sub>: the enhancement of birefringence and band gap by extending the π-conjugated system combined with [Al–O/F] functional groups
Cheng Chen, Danyang Dou, Yunjie Bai, Bingbing Zhang, Ying Wang
Abstract
Two new fluoroaluminoborates, BaAlB 3 O 6 F 2 and BaAl 2 (B 3 O 6 ) 2 F 2 , were designed and synthesized, exhibiting a markedly elevated birefringence in comparison with BaAlBO 3 F 2 .
Topics & Concepts
BirefringenceMaterials scienceCrystallographyPhysicsOpticsChemistryCrystal Structures and PropertiesInorganic Fluorides and Related CompoundsHigh-pressure geophysics and materials