Unsaturated dipyrromethene-boron borocarbons

Details Unsaturated dipyrromethene-boron borocarbons Unsaturated dipyrromethene-boron borocarbons

2011-03-01

2011-03-01

Shameem, Golam M (Department: 1626)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C548S400000

Reexamination Certificate

active

07897786

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, R1to R7permitting the modification of the compound properties (fluorescence emission wavelength, quantitative fluorescent yield), at least one of the substituents S1and S2has 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.

REFERENCES:
patent: 1 253 151 (2002-10-01), None
Ulrich et al., “Pyrromethene Dialkynyl Borane Complexes for “Cascatelle” Energy Transfer and Protein Labeling,” Angew. Chem. Int. Ed., vol. 44, pp. 3694-3698 (May 25, 2005).

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