Patent ID: 7585573

Claim:
An Ir compound represented by formula 2: wherein A is —CH; B is —CH; wherein R 1 and R 2 are H; R 3 is H, or an electron donating group selected from the group consisting of a methyl group, a methoxy group, an isopropyl group, a phenyloxy group, a benzyloxy group, a dimethylamino group, a diphenylamino group, a pyrrolidine group, and a phenyl group; R 5 and R 6 are F; and X is selected from the group consisting of acetylacetonate (acac), hexafluoroacetylacetonate (hfacac), picolinate (pic), salicylanilide (sal), quinoline carboxylate (quin), 8-hydroxyquinolinate (hquin), L-proline (L-pro), 1,5-dimethyl-3-pyrazolecarboxylate (dm3pc), imineacetylacetonate (imineacac), dibenzoylmethane (dbm), tetrametyl heptandionate (tmd), 1-(2-hydoxyphenyl) pyrazolate (oppz), and phenylpyrazole (ppz).