Patent ID: 7026061

Claim:
An organic electroluminescent material of the formula: wherein M is at least one selected from the group consisting of —CH 2 —, —CH 2 CH 2 —, —CH 2 CH 2 CH 2 —, —CH 2 C(CH 3 ) 2 CH 2 —, and —CH 2 YCH 2 —, X is at least one selected from the group consisting of oxygen, sulfur, nitrogen, carbon, alkyl, silicon, silyl, phosphorus, aryl, and polyaryl, n is depending on the amount of free radicals of X, and Y is at least one selected from the group consisting of oxygen, sulfur, nitrogen and SiR 1 R 2 , R 1 and R 2 being at least one selected from the group consisting of substituted or unsubstituted alkyl having 1 to 10 carbon atoms, and substituted or unsubstituted aryl having 6 to 30 carbon atoms.