In 2019,Chemical Science included an article by Mao, Zhu; Yang, Zhan; Xu, Chao; Xie, Zongliang; Jiang, Long; Gu, Feng Long; Zhao, Juan; Zhang, Yi; Aldred, Matthew P.; Chi, Zhenguo. Quality Control of o-Bromobenzaldehyde. The article was titled 《Two-photon-excited ultralong organic room temperature phosphorescence by dual-channel triplet harvesting》. The information in the text is summarized as follows:
Due to inefficient mol. design strategies, two-photon-excited ultralong organic room temperature phosphorescence (TPUOP) has not yet been reported in single-component materials. Herein, we present an innovative design method by dual-channel triplet harvesting to obtain the first bright TPUOP mol. with a lifetime of 0.84 s and a quantum efficiency of 16.6%. In compound o-Cz the donor and acceptor units are connected at the ortho position of benzophenone, showing intramol. space charge transfer. Therefore, the two-photon absorption ability is improved due to the enhanced charge transfer character. Moreover, the small energy gap boosts dual-channel triplet harvesting via ultralong thermally activated delayed fluorescence and H-aggregation phosphorescence, which suppresses the long-lived triplet concentration quenching. Through two-photon absorption, a near-IR laser (808 nm) is able to trigger the obvious ultralong emission under ambient conditions. This research work provides valuable guidance for designing near-IR-excited ultralong organic room temperature phosphorescence materials. The experimental part of the paper was very detailed, including the reaction process of o-Bromobenzaldehyde(cas: 6630-33-7Quality Control of o-Bromobenzaldehyde)
o-Bromobenzaldehyde(cas: 6630-33-7) is used in L-threonine aldolase-catalyzed enantio/diastereoselective aldol reactions.Quality Control of o-BromobenzaldehydeSynthetic applications of o-Bromobenzaldehyde include: synthesis of aza-fused polycyclic quinolines through copper-catalyzed cascade reaction, preparation of 1-substituted indazoles by CuI-catalyzed coupling with N-aryl hydrazides.
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary