A highly birefringent metal-free crystal assembled by cooperative non-covalent interactions
Yanqiang Li, Zhou Yang, Belal Ahmed, Qian-Ting Xu, Weiqi Huang, Yipeng Song, Xianyu Song, Bin Chen, Junhua Luo, Sangen Zhao
Abstract
, hydrogen bonding and π-π interactions. As a result, this metal-free crystal possesses exceptional birefringence up to 0.54@550 nm, which is larger than those of most metal-containing birefringent crystals. In addition, the interference color of this crystal does not change obviously from 243 K to 313 K, indicating that the birefringence is robust at different temperatures. This work will inspire useful insights into the role of non-covalent interactions in designing outstanding birefringent crystals for efficient polarized optical devices.
Topics & Concepts
BirefringenceCovalent bondMaterials scienceMetalCrystal (programming language)NanotechnologyCrystallographyChemistryOpticsOrganic chemistryMetallurgyProgramming languageComputer sciencePhysicsCrystal Structures and PropertiesInorganic Fluorides and Related CompoundsMineralogy and Gemology Studies