Synthesis of cyclooctatetraene derivatives and their use as electron transporters in organic light emitting diodes
AssigneeUniversity of Southern California
InventorsWilliam P. Weber, Ping Lu, Mark E. Thompson, Haiping Hong
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Abstract
The synthesis of asymmetric tetrasubstituted cyclooctatetraenes (“COTs”) and the use of said compounds in organic light emitting diodes is reported, wherein said COTs represent a class of wide gap electron transporters that are readily deposited in vacuum.
Claims27
A cyclooctatetraene compound having a chemical structure as represented by the formula selected from the group consisting of:
- wherein R1, R2, R3, R4, R5, R6, R7 and R8 are selected from the group consisting of phenyl, naphthyl, thienyl, benzthienyl, quinolinyl and pyridyl, each of which may be unsubstituted or substituted with at least one of lower alkyl, lower alkoxy, trifluoromethyl, halogen, nitro, CN, carbonyl and lower alkyl ester.
A cyclooctatetraene compound having a chemical structure as represented by the formula selected from the group consisting of:
- wherein R is selected from the group consisting of a hydrogen, lower alkyl, lower alkoxy, trifluoromethyl, halogen, nitro, CN, carbonyl and lower alkyl ester.
A cyclooctatetraene derivative formed as a tetramer of a single monomer wherein the monomer is selected from the group consisting of diphenylbutadiyne, di-p-tolylbutadiyne, di-p-methoxyphenylbutadiyne, bis-(b-naphthyl)butadiyne, bis(3-thienyl)butadiyne and bis(4-trifluoromethylphenyl)butadiyne.
Dependencies are inferred from the claim text.