Explore Short-Wavelength Birefringent Crystals via Triggering Cooperative Arrangement Between Different π-Conjugated Groups

We herein reported our strategy to assemble planar π-conjugated [B(OH)3] and [C2O4]2-/[HC2O4]-/[C4O4]2- functional groups to explore short-wave birefringent crystal. Three compounds, K2C2O4·B(OH)3, Cs4(HC2O4)2(C2O4)·[B(OH)3]2 andK(C4O4)0.5·B(OH)3, which all exhibit layered structure favorable...