Fullerene derivatives and organic electronic device comprising fullerene derivatives

A fullerene derivative of Chemical Formula 1:

• wherein:
• n is an integer of 1 to 5;
• when n is 2 or greater, structures within a parenthesis are the same as or different from each other;
• Cn is fullerene of C60 to C120;
• R1 to R6 are the same as or different from each other, and each is independently hydrogen, a halogen group, a nitro group, a cyano group, a carboxylic acid group, a hydroxyl group, a substituted or unsubstituted carbonyl group, a sulfo group (—SO3H), a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted ester group, a substituted or unsubstituted thioester group, a substituted or unsubstituted amide group, a substituted or unsubstituted ether group, a substituted or unsubstituted sulfonyl group (—SO2—), a substituted or unsubstituted alkylthioxy group, a substituted or unsubstituted arylthioxy group, a substituted or unsubstituted alkylamine group, a substituted or unsubstituted arylamine group, a substituted or unsubstituted arylalkyl group, a substituted or unsubstituted heteroarylalkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heteroring group, or adjacent substituents bond to each other to form a substituted or unsubstituted hydrocarbon ring or a substituted or unsubstituted heteroring;
• only one of R1 to R6 is
• o is an integer of 1 to 3, and when o is an integer of 2 or greater, two or more Ls are the same as or different from each other;
• L is an unsubstituted alkylene;
• and
• R is hydrogen, a carboxylic acid group, a substituted or unsubstituted carbonyl group, an unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted ester group, a substituted or unsubstituted thioester group, a substituted or unsubstituted amide group, a substituted or unsubstituted sulfonyl group (—SO2—), a substituted or unsubstituted arylalkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroring group,
• when R is a substituted carbonyl group substituted with a substituted alkyl group, the substituted alkyl group of the substituted carbonyl group is substituted with one or more substituents selected from the group consisting of a halogen group, a nitro group, a cyano group, a hydroxyl group, a carbonyl group, a sulfo group, an allyl group, an alkoxy group, a cycloalkyl group, an alkenyl group, an ester group, an ether group, a sulfonyl group, a sulfoxy group, an arylalkyl group, an aryl group, and a heteroring group,
• wherein when one of R5 and R6 is unsubstituted alkyl and the other one of R5 and R6 is hydrogen, R3 and R4 are each hydrogen, one of R1 and R2 is hydrogen and the other one of R1 and R2 is
• L is an unsubstituted alkylene, and o is 1, R is a carboxylic acid group, a substituted or unsubstituted carbonyl group, an unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted ester group, a substituted or unsubstituted thioester group, a substituted or unsubstituted amide group, a substituted or unsubstituted sulfonyl group (—SO2—), a substituted or unsubstituted arylalkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroring group.