An effective pathway to design and synthesize UV birefringent crystalsviarational assembly of π-conjugated [CO3]2−and [NO3]−triangles

Na 3 Rb 6 (CO 3 ) 3 (NO 3 ) 2 X·6H 2 O has the potential to serve as an excellent UV birefringent crystal due to its large birefringence and wide band gap.