Electroluminescent iridium compounds and devices made therefrom
US7816016B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2005 |
| Grant date | Oct 19, 2010 |
| Priority date | — |
| Expiry date | Jun 12, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Provided are complexes of the formula:where R1 is H, R4, OR4, N(R4)2 or CHAr2; R2 is H, CnF2n+1, CnF2n+1 SO2, COOR4, or CN; R3 is H, CnF2n+1, CnF2n+1SO2, COOR4, or CN; R4 is the same or different at each occurrence and is H, alkyl, or aryl, or adjacent R4 groups can join together to form a 5- or 6-membered ring, or adjacent R4 groups can join together to form a 5- or 6-membered ring; or adjacent R4 groups can join together to form a multicyclic moiety; each Ar is independently an aryl group; L′ is a polydentate ligand that is not a phenylpyridine, phenylpyrimidine, or phenylquinoline; L″ is a monodentate ligand, and is not a phenylpyridine, and phenylpyrimidine, or phenylquinoline; m is 1, 2 or 3; n is an integer from 1 through 20; y is 0, 1 or 2; and z is 0 or an integer from 1 through 4; with the proviso that the compound is charge neutral and the iridium is hexacoordinate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.