Organic compounds and organic electroluminescence devices employing the same are provided. The organic compound has a chemical structure represented as follows: wherein: R1, R2, R3, R4, R5, R6, and R7 are each independently an H, C1-8 alkyl group, C1-8 alkoxy group, C1-8 halo-alkyl group, aryl group, heteroaryl group, cycloalkyl group, hetero-cycloalkyl group, or cycloaliphatic group; Z is independently and R8 and R9 are each independent an aryl group, heteroaryl group, cycloalkyl group, hetero-cycloalkyl, or cycloaliphatic group.