Li, Guijie et al. published their research in Journal of Materials Chemistry C: Materials for Optical and Electronic Devices in 2020 | CAS: 100189-84-2

2,5-Dibromo-1,3-dimethylbenzene (cas: 100189-84-2) belongs to organobromine compounds. Bromine is more electronegative than carbon (2.9 vs 2.5). Consequently, the carbon in a carbon–bromine bond is electrophilic, i.e. alkyl bromides are alkylating agents. The principal reactions for organobromides include dehydrobromination, Grignard reactions, reductive coupling, and nucleophilic substitution.Formula: C8H8Br2

Efficient deep-blue organic light-emitting diodes employing difluoroboron-enabled thermally activated delayed fluorescence emitters was written by Li, Guijie;Zhan, Feng;Lou, Weiwei;Wang, Dan;Deng, Chao;Cao, Lina;Yang, Yuning;Zhang, Qisheng;She, Yuanbin. And the article was included in Journal of Materials Chemistry C: Materials for Optical and Electronic Devices in 2020.Formula: C8H8Br2 This article mentions the following:

The design and development of efficient emitters for deep-blue OLEDs with CIEy < 0.10 remains a challenge. A new series of tetracoordinated difluoroboron (BF2)-enabled thermally activated delayed fluorescent (TADF) materials with D-A-BF2-type and D-π-A-BF2-type frameworks for sky-blue to deep-blue emitters were designed and developed. The emission colors could be effectively tuned through regulating the degree of conjugation between the HOMO (HOMO) and LUMO (LUMO) by simply introducing a Me group into the Ph ring to adjust the mol. geometries and change the acceptor moieties, which were strongly supported by the d. functional theory (DFT) calculations and electrochem. studies. All the tetracoordinated difluoroboron TADF emitters are air-stable and insensitive to moisture, and they are strongly emissive in degassed toluene peaking at 435-471 nm with high photoluminescence quantum efficiencies (PLQYs) of 94-99%. The BF2-MPCz-doped sky-blue OLED demonstrated a peak EQE of 13.8% with a Lmax value of 20853 cd m-2 and CIE coordinates of (0.175, 0.354), and the BF2-DMCz-doped deep-blue OLED achieved a peak EQE of 8.4% with CIE coordinates of (0.149, 0.083). This indicates that the BF2-enabled TADF materials can act as efficient emitters for the fabrication of sky-blue to deep-blue OLEDs. In the experiment, the researchers used many compounds, for example, 2,5-Dibromo-1,3-dimethylbenzene (cas: 100189-84-2Formula: C8H8Br2).

2,5-Dibromo-1,3-dimethylbenzene (cas: 100189-84-2) belongs to organobromine compounds. Bromine is more electronegative than carbon (2.9 vs 2.5). Consequently, the carbon in a carbon–bromine bond is electrophilic, i.e. alkyl bromides are alkylating agents. The principal reactions for organobromides include dehydrobromination, Grignard reactions, reductive coupling, and nucleophilic substitution.Formula: C8H8Br2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary