Li, Hao-Chun published the artcileColor tuning and highly efficient blue emitters of finite diphenylamino-containing oligo(arylenevinylene) derivatives using fluoro substituents, Recommanded Product: 4-Bromo-1-(bromomethyl)-2-fluorobenzene, the publication is Advanced Functional Materials (2007), 17(4), 520-530, database is CAplus.
New fluoro derivatives of Ph2N-containing (Ph: phenyl) oligo(arylenevinylene) derivatives were prepared by using double Heck-coupling reactions or Horner-Wadsworth-Emmons reactions. These oligomers are highly fluorescent (fluorescence quantum yields Φ = 0.93-0.68) with emissions in a broad wavelength region (448-579 nm), depending on the position of the fluoro substituents. The highest occupied and LUMO (HOMO-LUMO) energy levels of these oligomers were characterized by electrochem. and UV spectroscopy. The effects of the fluoro substituents on the energy levels are rationalized with HOMO-LUMO simulations. In a classical organic light emitting diode (OLED), one representative (5a) shows a remarkable external quantum efficiency value (ηext = 4.87 %) at J = 20 mA cm-2; the maximum brightness at 10.2 V is 22,506 cd m-2 (λ = 458 nm; Commission Internationale de l’Eclairage (CIE) coordinates x = 0.14, y = 0.14) with a full width at half-maximum of 54 nm, demonstrating the superiority of these fluoro-containing oligomers in OLED devices.
Advanced Functional Materials published new progress about 76283-09-5. 76283-09-5 belongs to bromides-buliding-blocks, auxiliary class Fluoride,Bromide,Benzyl bromide,Benzene, name is 4-Bromo-1-(bromomethyl)-2-fluorobenzene, and the molecular formula is C7H5Br2F, Recommanded Product: 4-Bromo-1-(bromomethyl)-2-fluorobenzene.
Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary