1351526-07-2Relevant articles and documents
Synthesis of novel twisted carbazole-quinoxaline derivatives with 1,3,5-benzene core: Bipolar molecules as hosts for phosphorescent OLEDs
Ananth Reddy,Thomas, Anup,Mallesham,Sridhar,Jayathirtha Rao,Bhanuprakash
, p. 6942 - 6947 (2012/02/06)
A series of carbazole/quinoxaline hybrids have been synthesized by classic Ullmann and Pd/Cu-catalyzed Sonogashira coupling reaction. Their photophysical, thermal, and electrochemical properties were investigated. The introduction of electron rich carbazole and electron deficient quinoxaline on to the 1,3,5-benzene center leads to a twisted structure with good glass forming property and imparts a bipolar character. The triplet energies in the range of 2.34-2.53 eV indicate them as potential host materials in phosphorescent OLEDs.