SrAlB<sub>3</sub>O<sub>6</sub>F<sub>2</sub>: A Fluoroaluminoborate with [Al<sub>2</sub>B<sub>6</sub>O<sub>14</sub>F<sub>4</sub>] Units and Large Birefringence
Shuo Bai, Xiaodong Zhang, Bingbing Zhang, Ling Li, Ying Wang
Abstract
The first strontium fluoroaluminoborate SrAlB3O6F2 was synthesized. Interestingly, it exhibits a two-dimensional warped layer composed of the [Al2B6O14F4] fundamental building units, which are first identified in borates. The experimental results indicate that SrAlB3O6F2 has a short ultraviolet cutoff edge (<200 nm) and large birefringence (0.075@546 nm), which are further verified by theoretical calculation. Thus, SrAlB3O6F2 can be used as the deep-ultraviolet birefringence material.
Topics & Concepts
BirefringenceChemistryStrontiumUltravioletBoronCutoffAnalytical Chemistry (journal)CrystallographyOpticsPhysicsQuantum mechanicsOrganic chemistryChromatographyCrystal Structures and PropertiesInorganic Fluorides and Related CompoundsHigh-pressure geophysics and materials