Carbazolylpyridine (cp)-based tetradentate platinum(ii) complexes containing fused 6/5/6 metallocycles

In this work, a series of novel 6/5/6 tetradentate Pt( ii ) complexes based on carbazolylpyridine ( cp ) ligands were designed and synthesized, achieving red emission at 611–624 nm with a quantum efficiency of up to 85% in dichloromethane.