Biscarbazole derivative, material for organic electroluminescence device and organic electroluminescence device using the same
US8652654B2 · kind B2 · utility
24Cited by
3References
29Claims
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Key dates
| Filing date | Apr 20, 2011 |
| Grant date | Feb 18, 2014 |
| Priority date | — |
| Expiry date | Apr 20, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A biscarbazole derivative of the invention is represented by a formula (1) below.In the formula (1): A1 represents a substituted or unsubstituted nitrogen-containing heterocyclic group having 1 to 30 ring carbon atoms; A2 represents a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms, or substituted or unsubstituted nitrogen-containing heterocyclic group having 1 to 30 ring carbon atoms; X1 and X2 each are a linking group; Y1 to Y4 each represent a substituent; p and q represent an integer of 1 to 4; and r and s represent an integer of 1 to 3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.