Organic compounds for electroluminescence and organic electroluminescent devices using the same

An organic electroluminescent (“EL”) device comprising of an anode;

• a cathode;
• and at least one layer located between the anode and the cathode, wherein the layer comprises a light-emitting layer having a light-emitting the compound of the Formula I generating visible light of colors ranging from green to red:
• wherein at least one of R1 through R4 is represented by Formula II:
• wherein n is an integer from 1 to 10, and wherein R5 and each of R1-R4 that is not Formula II are non double-spiral substituent groups selected from the group consisting of:
• hydrogen;
• halo;
• hydroxyl;
• mercapto;
• cyano;
• nitro;
• carbonyl;
• carboxyl;
• formyl;
• substituted or unsubstituted C1-C20 alkyl;
• substituted or unsubstituted C2-C10 alkenyl;
• substituted or unsubstituted C2-C7 alkynyl;
• substituted or unsubstituted aryl;
• substituted or unsubstituted heteroaryl;
• substituted or unsubstituted C3-C7 cycloalkyl, in which a carbon atom in the ring can optionally be replaced by an oxygen, nitrogen or sulfur atom;
• substituted or unsubstituted C4-C7 cycloalkenyl, in which a carbon atom in the ring can be optionally replaced by an oxygen, nitrogen or sulfur atom;
• substituted or unsubstituted C1-C20 alkoxy;
• substituted or unsubstituted C2-C10 alkenyloxy;
• substituted or unsubstituted C2-C7 alkynyloxy;
• substituted or unsubstituted aryloxy;
• substituted or unsubstituted C1-C20 alkylamine;
• substituted or unsubstituted C2-C10 alkenylamine;
• substituted or unsubstituted C2-C7 alkynylamine;
• substituted or unsubstituted arylamine;
• substituted or unsubstituted alkylarylamine;
• substituted or unsubstituted C1-C20 alkylsilyl;
• substituted or unsubstituted C2-C10 alkenylsilyl;
• substituted or unsubstituted C2-C7 alkynylsilyl;
• substituted or unsubstituted arylsilyl;
• substituted or unsubstituted alkylarylsilyl;
• substituted or unsubstituted C1-C20 alkylboranyl;
• substituted or unsubstituted C2-C10 alkenylboranyl;
• substituted or unsubstituted C2-C7 alkynylboranyl;
• substituted or unsubstituted arylboranyl;
• substituted or unsubstituted alkylarylboranyl;
• substituted or unsubstituted C1-C20 alkylthio;
• substituted or unsubstituted C2-C10 alkenylthio;
• substituted or unsubstituted C2-C7 alkynylthio;
• and substituted or unsubstituted arylthio groups;
• and wherein R1 and R4 are different when both R1 and R4 are not Formula II.