Liu, Ch. published the artcileSynthesis and Properties of Main-Chain Phosphorescent Polymer with Iridium Complex, Category: nitriles-buliding-blocks, the main research area is mainchain phosphorescent polymer iridium complex.
The main-chain phosphorescent polymers, PFCzIr(PhStz) and PFOIr(PhStz) with iridium complex (4-BrPhBt)2Ir(Pytz), are synthesized by the Suzuki polycondensation, in which the fluorene-carbazole and fluorene segments are used as a polymer backbone. The studied photoluminescent and electroluminescent properties demonstrate good overlap of the emission spectra of poly(fluorene-carbazole) (PFCz) or polyfluorene (PFO) host and the absorption spectra of the iridium complex guest that meets requirements for the efficient Forster transfer from the host polymer to the iridium complex in polymers. With the increase of the content of iridium complex, the host emission intensity decreases, while the guest emission intensity gradually increases. As compared with PFOIr(PhStz), host-guest system in PFCzIr(PhStz) is more efficient in Forster energy transfer, and the photoluminescence and electroluminescence properties are more sound. Among all polymers, PFCzIr(PhStz) 5.0 demonstrates the best performance in electroluminescence, its fluorescence quantum is 22.74%. The devices fabricated from PFCzIr(PhStz)5.0 exhibit yellow-red emission with a maximum brightness of 1568 cd/m2 at 14 V, luminous efficiency and power efficiency reach 6.24 cd/A and 2.45 lm/w.
Russian Journal of General Chemistry published new progress about Electric current-potential relationship. 100-70-9 belongs to class nitriles-buliding-blocks, name is Picolinonitrile, and the molecular formula is C6H4N2, Category: nitriles-buliding-blocks.
Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts