《Anisotropic Poisson Effect and Deformation-Induced Fluorescence Change of Elastic 9,10-Dibromoanthracene Single Crystals》 was published in Angewandte Chemie, International Edition in 2020. These research results belong to Hayashi, Shotaro; Ishiwari, Fumitaka; Fukushima, Takanori; Mikage, Shohei; Imamura, Yutaka; Tashiro, Motomichi; Katouda, Michio. Application of 523-27-3 The article mentions the following:
Elastic organic crystals have attracted considerable attention as next-generation flexible smart materials. However, the detailed information on both mol. packing change and macroscopic mech. crystal deformations upon applied stress is still insufficient. Herein, we report that fluorescent single crystals of 9,10-dibromoanthracene are elastically bendable and stretchable, which allows a detailed investigation of the deformation behavior. We clearly observed a Poisson effect for the crystal, where the short axes (b and c-axes) of the crystal are contracted upon elongation along the long axis (a-axis). Moreover, we found that the Poisson’s ratios along the b-axis and c-axis are largely different. Theor. mol. simulation suggests that the tilting motion of the anthracene may be responsible for the large deformation along the c-axis. Spatially resolved photoluminescence (PL) measurement of the bent elastic crystals reveals that the PL spectra at the outer (elongated), central (neutral), and inner (contracted) sides are different from each other. The experimental process involved the reaction of 9,10-Dibromoanthracene(cas: 523-27-3Application of 523-27-3)
9,10-Dibromoanthracene(cas: 523-27-3) can be sublimated and oxidized to generate anthraquinone. Soluble in hot benzene and hot toluene, slightly soluble in alcohol, ether and cold benzene, insoluble in water.Application of 523-27-3
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary