Symmetrical dyes with large two-photon absorption cross-sections
US5859251A · kind A · utility
48Cited by
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3Claims
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Key dates
| Filing date | Sep 18, 1997 |
| Grant date | Jan 12, 1999 |
| Priority date | — |
| Expiry date | Sep 18, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D417/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A two-photon absorbing chromophore of the formula EQU E--Ar--E wherein the Ar core is selected from the group consisting of ##STR1## wherein R.sub.1 and R.sub.2 are alkyl groups having 8 to 12 carbon atoms, and wherein R.sub.1 and R.sub.2 are the same or different, and wherein E is a moiety selected from the group consisting of ##STR2##
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.