(C₅H_6.16N₂Cl_0.84)(IO₂Cl₂): a birefringent crystal featuring unprecedented (IO₂Cl₂)^- anions and π-conjugated organic cations.

ABSTRACT: Birefringent crystals can manipulate the polarization state of lasers and have vital application in polarizers, optical isolators, phase compensators, etc. The design and synthesis of crystals with large birefringence remains a challenging task. To design crystals with large birefringence, we combine an unprecedented chloroiodate(v) group (IO₂Cl₂)^- featuring large polarizability anisotropy and a strong stereochemically active lone pair (SCALP) with the π-conjugated 2-amino-5-chloropyridine group. The superior synergy effect of (IO₂Cl₂)^- and 2-amino-5-chloropyridine groups produces a new birefringent crystal, namely (C₅H_6.16N₂Cl_0.84)(IO₂Cl₂). It exhibits

SUBMITTER: Chen QQ 

PROVIDER: S-EPMC10718177 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature