Angewandte Chemie, Год журнала: 2024, Номер 137(1)
Опубликована: Авг. 15, 2024
Abstract Deep‐ultraviolet (UV) birefringent materials are urgently needed to facilitate light polarization in deep‐UV lithography. Maximizing anisotropy by regulating the alignment of functional modules is essential for improving linear optical performance materials. In this work, we proposed a strategy design that achieve module ordering via weak interactions. Following strategy, four compounds CN 4 H 7 SO 3 CF , CH C(NH 2 ) and were identified as high‐performance candidates The millimeter‐sized crystals grown, transmittance spectra show their cutoff edges below 200 nm. exhibits largest birefringence (0.149 @ 546 nm, 0.395 nm) region among reported sulfates sulfate derivatives. It reveals hydrogen bond can modulate heteroleptic tetrahedra planar π‐conjugated cations, thus greatly enhancing birefringence. Our study not only discovers new but also provides an upgraded optimizing efficient
Язык: Английский