Photocyclization of substituted 1,4-distyrylbenzenes to dibenz [a,h] anthracenes
作者:J. Blum、M. Zimmerman
DOI:10.1016/0040-4020(72)80133-9
日期:1972.1
photochemical route for the synthesis of 7,14-dimethyl-, 7,14-dichloro-, and 7,14-difluoro-dibenz[a,h]anthracene has been investigated. The 7,14-dimethyl derivative was obtained by photocyclization of either 2,5-distyryl- or 2,5-bis-(2-iodostyryl)-p-xylene, while the dichloro- and difluoro-dibenz[a,h]anthracene could be prepared only from the corresponding 2,5-bis-(2-iodostyryl)-1,4-dihalobenzenes. 2,5-Distyryl-1
Circularly Polarized Lasing from a Microcavity Filled with Achiral Single‐Crystalline Microribbons
作者:Qian Liang、Xuekai Ma、Teng Long、Jiannian Yao、Qing Liao、Hongbing Fu
DOI:10.1002/anie.202213229
日期:2023.2.20
Circularlypolarizedlasing with high dissymmetry factors has been realized in an organic crystal-filled cavity without any chiral materials or structures. The fundamental principle is the Rashba-Dresselhaus effect induced spin-splitting as well as the unique properties of the organic single crystals.