Red Electroluminescent Compounds And Organic Electroluminescent Device Using The Same

Organic electroluminescent compounds shown in terms of the following Chemical Formula 1:

• where R1, R2, R3, R4, R5, and R6 are independent from each other, and each of said R1, R2, R3, R4, R5, and R6 may be hydrogen, a side-chained or straight-chained alkyl radical having a chain length of C1 to C10, cycloalkyl radical of C5 to C7, allyl radical, aralkyl radical, fused ring, or R11R12R13Si—, where
• said R1 and R2 or R3 and R4 are connected to C5 to C10 alkylene thus forming a spiro ring;
• said R1 and R5 or R3 and R6 may form a fused ring as they are connected to C3 to C5 alkylene, and carbons of said alkylene of said fused ring connected to said alkylene are substituted with R14R15Si<and may form a fused silacycloalkyl radical;
• said alkyl radical, cycloalkyl radical, allyl radical, and aralkyl radical of said R1, R2, R3, R4, R5, and R6 may be additionally substituted with more than one R11R12R13Si—;
• R7 is hydrogen or a side-chained or straight-chained alkyl radical having a chain length of C1 to C10, cycloalkyl radical of C5 to C7, allyl radical, aralkyl radical, or fused ring;
• both of R8 and R9 is —CN or forms a 1,3-indandion ring as they are combined with
• R11, R12, R13, R14 and R15 are the same as or different from each other, and each of said R11, R12, R13, R14 and R15 may be a side-chained or straight-chained alkyl radical having a chain length of C1 to C10, cycloalkyl radical of C5 to C7, allyl radical, or arallyl radical, where said R11 and R12 or R14 and R15 are connected to alkylene or alkenylene of C4 to C10 thus forming a spiro ring;
• and
• when more than one of said R1, R2, R3, and R4 include said substituent, the remaining substituents among said R1, R2, R3, and R4 may be hydrogen, or side-chained or straight-chained alkyl radicals having a chain length of C1 to C10 that may be substituted or non-substituted, provided that a radical, selected from side-chained or straight-chained alkyl radicals of C1 to C10 where all of four R1, R2, R3, and R4 substitution radicals are composed of hydrogens or of carbons and hydrogens only, is excluded.