Organic bromides such as alkyl bromides are used as fumigants in agriculture to control insects. 1575-37-7, formula is C6H7BrN2, Name is 4-Bromobenzene-1,2-diamine. Ethylene bromide is one of the commercially important organic bromides which are the component of leaded gasoline. Product Details of C6H7BrN2.
Zhang, Xiao;Li, Jiao-Yang;Zhang, Kai;Ding, Lei;Wang, Chuan-Kui;Fung, Man-Keung;Fan, Jian research published 《 Highly efficient thermally activated delayed fluorescence emitters with suppressed energy loss and a fast reverse intersystem crossing process》, the research content is summarized as follows. Thermally activated delayed fluorescence (TADF) emitters with low non-radiative decay and a fast reverse intersystem crossing (RISC) process are highly desirable for achieving efficient organic light-emitting diodes (OLEDs). This work revealed the excited-state structural relaxation induced emission behavior of the frequently used donor unit, spiro[acridine-9,9′-fluorene] (spAc). This structural change at the excited state from bent conformation to planar conformation was suppressed greatly by doping the emitter in a solid matrix, thus avoiding the non-radiative energy loss and enhancing the utilization of excitons. Furthermore, the spAc-based emitters achieved small ΔE(1CT-3CT) and ΔE(3LE-3CT) with the aid of the robust configuration design, thus promoting a fast RISC process up to 1.69 x 106 s-1. As a result, these TADFs demonstrated excellent photoluminescence quantum yields (PLQYs) in the range of 91.0-98.2%. OLEDs based on BPCN-spAc showed a state-of-the-art efficiency with an external quantum efficiency (EQE) of nearly 30% and power efficiency (PE) over 80 lm W-1 at 592 nm. This study deepened the understanding of the luminescent behavior of robust TADF emitters in solution and in the solid state, which could provide helpful guidance for the design of efficient TADF materials.
1575-37-7, 4-Bromo-1,2-diaminobenzene can be obtained from 1,2-diaminobenzene via acetylation followed by bromination and alkaline hydrolysis.
4-Bromobenzene-1,2-diamine, also known as 4-Bromobenzene-1,2-diamine, is a useful research compound. Its molecular formula is C6H7BrN2 and its molecular weight is 187.04 g/mol. The purity is usually 95%.
4-Bromo-1,2-diaminobenzene is a dye that is used in diagnostic
procedures to detect the presence of amide groups. 4-Bromo-1,2-diaminobenzene can be used as an inhibitor for cationic polymerization reactions. It also has tuberculostatic activity and inhibits the growth of Mycobacterium tuberculosis. This compound reacts with aniline to form a benzimidazole derivative that contains a reactive amine group. The reaction between this amine group and different electrophiles generates benzimidazole compounds with different properties that are useful in nucleophilic attack reactions. The reaction between 4-bromo-1,2-diaminobenzene and methyl ethyl sulfide produces a luminescent probe that can be used to detect hydrogen bonds., Product Details of C6H7BrN2
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary