New blue luminescent chelate compounds: BPh2(2-py-ben) and BPh2(2-py-imi) [2-py-ben = 2-(2-pyridyl)benzimidazole; 2-py-imi = 2-(2-pyridyl)imidazole]

Using ab intio calculation, the absorption and electroluminescence (EL) of some boron(III) complexes containing Bph2(2-py-in) and Bph2(2-py-aza) [2-py-in = 2(2-pyridyl)indole; 2-py-aza = 2-(2-pyridyl)-7-azaindole] known as blue emitting materials were cal