Abstract
Organic light-emitting diodes (OLEDs) based on luminescent heavy metal complexes are playing a key role in next generation flat panel displays and solid-state lightings based on OLED technology, Development of highly luminescent deep blue phosphorescent materials with CIE coordinates less than (0.20,0.20) are desired. Now we synthesized novel platinum complexes having an electron-accepting phenylsulfonyl group. We also investigated the physical properties.