Unsaturated dipyrromethene-boron borocarbons
US7897786B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 14, 2006 |
| Grant date | Mar 1, 2011 |
| Priority date | — |
| Expiry date | Sep 26, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F5/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to unsaturated dipyrromethene-boron borocarbons of formula (I) and the use thereof for fluorescence or electroluminescent analysis. The fluorescent properties are provided by the central ring of six atoms comprising the —N—B—N— sequence, R1 to R7 permitting the modification of the compound properties (fluorescence emission wavelength, quantitative fluorescent yield), at least one of the substituents S1 and S2 has a chromophore end group which permits an excitation of the molecule at wavelengths close to those of the substituent chromophore. A preferably selected from the chromophore substituents with a wavelength close to the ultraviolet which significantly increases the Stokes displacement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.