Complesso fosforescente di iridio o platino, relativo metodo di produzione, relativo uso nella preparazione di dispositivi optoelettronici

Phosphorescent complex comprising iridium or platinum, production method thereof, its use in the preparation of optoelectronic devices. The present invention relates to a phosphorescent metal complex, synthetic intermediates suitable for the preparation thereof, related synthetic methods and OLEDs containing it. The phosphorescent metal complex is characterized by having a structure of formula (I), comprising at least one substituted benzo[1,2-b:4,5- b']dithiophenyl-isoquinolate binder (iqbdt-der): Formula I wherein M is a metal selected from Ir(III) and Pt(II), m is an integer comprised between 1 and 2, L is a bidentate binder and n is an integer comprised between 1 and 2, the sum of n and m is equal to 2 or 3, R1 is a substituent selected from the group consisting of -H; -F; -CF3; -CN; - C6Fs - COOR2 and -CONR3R4, wherein R2, R3 and R4 are independently selected from hydrogen, linear or branched alkyls having from 1 to 4 carbon atoms or aryls preferably selected from phenyl, 2- methylbenzene, 2,4-dimethylbenzene, 2,4,6-trimethylbenzene, k is the charge of the complex and is equal to 0 or +1, and X is an anion, preferably selected from Cl-, BF4 -, or PF6 -, wherein j is the coefficient of the anion X and is equal to 0 or 1.

La presente invenzione riguarda composti organometallici fosforescenti emissivi nel vicino infrarosso (NIR), il relativo metodo di preparazione sintetica, ed il loro impiego nella preparazione di diodi organici ad emissione di luce (OLED). La presente invenzione concerne un complesso metallico fosforescente, intermedi sintetici idonei alla sua preparazione, relativi metodi sintetici e OLED che lo contengono. Il complesso metallico fosforescente si caratterizza per avere una struttura di formula (I), comprendente almeno un legante benzo[1,2-b:4,5-b']ditiofenil-5 isochinolato sostituito (iqbdt-der):