Zixiang Chen, Qiong Wu, Jinquan Hong, Guofa Dong and Liang Ma
J. Mater. Chem. C, 2024,12, 5696-5700
DOI:
10.1039/D3TC04666D,
Communication
Herein, a novel optical crystal material, C8H6IN3O4, has been synthesized through rational design. Remarkably, C8H6IN3O4 showcases a large birefringence of 0.55@550 nm, surpassing those of commercially available birefringent materials. Theoretical calculations and analyses indicate that this phenomenon arises from the uniform alignment of π-conjugated [NO3]− and [C8H6IN2O]+ groups.
