Localized versus Backbone Fluorescence in N-p-(Diarylboryl)phenyl-Substituted 2,7- and 3,6-Linked Polycarbazoles was written by Reitzenstein, Doerte;Lambert, Christoph. And the article was included in Macromolecules (Washington, DC, United States) in 2009.Related Products of 100189-84-2 This article mentions the following:
The triarylborane acceptor in poly[9-((4-dimesitylboryl)-3,5-dimethylphenyl)-9H-carbazole]-3,6-diyl, P2, has a strong impact on the optical properties of the 3,6-linked polycarbazole and results in enhanced fluorescence quantum yield because of a low-lying fluorescent CT (charge transfer) state. In contrast, the same acceptor substituent does not influence the optical properties of poly[9-((4-dimesitylboryl)-3,5-dimethylphenyl)-9H-carbazole]-2,7-diyl, P1. In P1, the optical properties are governed by conjugation along the carbazole backbone. This interpretation is supported by comparison with poly[9-(4-(diphenylmethyl)-phenyl)-9H-carbazole]-2,7-diyl, P3, reference Synthesis and characterization by gel permeation chromatog., NMR spectroscopy, absorption, and fluorescence measurements in solution and solid state and cyclic voltammetric measurements of the three polymers are presented. A single-layer OLED [organic light-emitting device] was constructed with P2 to study electroluminescent properties. A solution of P2 in chloroform/toluene was spin coated onto ITO-coated glass plates, and Al contacts were deposited on top. In the experiment, the researchers used many compounds, for example, 2,5-Dibromo-1,3-dimethylbenzene (cas: 100189-84-2Related Products of 100189-84-2).
2,5-Dibromo-1,3-dimethylbenzene (cas: 100189-84-2) belongs to organobromine compounds. Most of the natural organobromine compounds are produced by marine organisms, and several brominated metabolites with antibacterial, antitumor, antiviral, and antifungal activity have been isolated from seaweed, sponges, corals, molluscs, and others. Bromine-containing agents predominate because not only are they more efficient than similar chlorine-containing species, but also the high atomic weight of bromine ensures that it is present in a high mass fraction within most organobromine compounds.Related Products of 100189-84-2
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary