Boron complexes with mesityl and oxyquinoline ligands: Syntheses, structures, and luminescence properties.

New oxyquinoline boron complexes MesBQ ( I) and MesBQ ( II), where QH is 8-hydroxyquinoline and QH is 2-methyl-8-hydroxyquinoline, (CIF files CCDC 1051351 ( I) and 1051352 ( II)) are synthesized and structurally characterized. Their photoluminescence (PL) and electroluminescence (EL) properties are studied. The compounds have an intense green PL. The EL characteristics of complexes I and II doped in poly-N-vinylcarbazole (PVK) differ substantially. Compound I generates green luminescence with a brightness of 356 cd/m2, whereas white EL with a brightness of 36 cd/m is observed in the case of compound II. [ABSTRACT FROM AUTHOR]