Patent ID: 7276298

Claim:
A layer of an organic electroluminescent device, wherein the layer comprises: where A is an amine derivative moiety comprising a hole transporting capability, wherein the amine derivative moiety is selected from the group consisting of a 2-valent moiety, a 3-valent moiety, and a 4-valent moiety, each of Y 1 , Y 2 , Y 3 , and Y 4 is independently a group comprising a functional group capable of crosslinking; and each of a and b is independently 0 or 1, wherein if A is a 2-valent moiety, both a and b are 0 and if A is a 4-valent moiety, both a and b are 1, wherein at least one of Y 1 , Y 2 , Y 3 , and Y 4 is selected from the group consisting of where R 1 is selected from the group consisting of a substituted or unsubstituted C 1-12 linear or branched alkylene group, a substituted or unsubstituted C 3-12 cycloalkylene group, a substituted or unsubstituted C 6-14 arylene group, a substituted or unsubstituted C 2-14 hetroarylene group, —O—C(═O)—(CH 2 ) n —, and —(CH 2 ) n —O— where n is an integer from 1-12; where each of R 2 , R 3 , and R 4 is independently selected from the group consisting of H, Cl, —OH, a C 1-12 alkyl group, a C 1-12 alkoxy group, a C 1-12 hydroxyalkyl group, a C 6-14 aryl group, and a C 2-14 heteroaryl group; and where R 5 is selected from the group consisting of H, a C 1-12 alkyl group, a C 1-12 alkoxy group, a C 6-14 aryl group, and a C 2-14 heteroaryl group.