Deng, Lijun et al. published their research in Journal of Materials Chemistry in 2012 | CAS: 3268-21-1

1,4-Diiodo-2,3,5,6-tetramethylbenzene (cas: 3268-21-1) belongs to iodide derivatives. Iodide-containing intermediates are common in organic synthesis, because of the easy formation and cleavage of the C–I bond. Alkyl iodides react at a faster rate than alkyl fluorides due to the weak C-I bond.HPLC of Formula: 3268-21-1

Durene-decorated CBP derivatives as phosphorescent hosts and exciton-blocking materials for efficient blue OLEDs was written by Deng, Lijun;Wang, Xinzeng;Zhang, Zhengchuan;Li, Jiuyan. And the article was included in Journal of Materials Chemistry in 2012.HPLC of Formula: 3268-21-1 This article mentions the following:

Two novel durene-containing mols., 1,4-bis[4-(9-carbazolyl)phenyl]durene (CPD) and 1,4-bis{4-[9-(3,6-(di-tert-butyl)carbazoyl)]phenyl}durene (Me3CCPD), which are derived from 4,4′-bis(9-carbazolyl)biphenyl (CBP) by inserting durene in its biphenyl core, are designed and synthesized for use as host materials for blue phosphors in organic LEDs (OLEDs). Inserting durene in biphenyl causes a right-angle torsion between the durene and the adjacent Ph groups due to the strong steric hindrance effect of the durene group, confining the effective π-conjugation on only one carbazole and 1 Ph and increasing the triplet energies of CPD and Me3CCPD to >3.0 eV. These durene-decorated mols. show higher thermal stabilities than many other CBP derivatives Blue phosphorescent OLEDs were fabricated using CPD and Me3CCPD as triplet hosts and traditional Ir(III) bis(4,6-(difluorophenyl)pyridinato-N,C2′)picolinate (FIrpic) as a dopant and excellent performances were achieved. In particular, peak efficiencies of 26.2 cd A-1 and 14.8 lm W-1 were realized when CPD was used as both a host and exciton-blocking material. This is the 1st report using durene to tune the triplet energy levels of phosphorescent host materials. In the experiment, the researchers used many compounds, for example, 1,4-Diiodo-2,3,5,6-tetramethylbenzene (cas: 3268-21-1HPLC of Formula: 3268-21-1).

1,4-Diiodo-2,3,5,6-tetramethylbenzene (cas: 3268-21-1) belongs to iodide derivatives. Iodide-containing intermediates are common in organic synthesis, because of the easy formation and cleavage of the C–I bond. Alkyl iodides react at a faster rate than alkyl fluorides due to the weak C-I bond.HPLC of Formula: 3268-21-1

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com