Long-Wavelength Analogue of PRODAN: Synthesis and Properties of Anthradan, a Fluorophore with a 2,6-Donor−Acceptor Anthracene Structure
作者:Zhikuan Lu、Samuel J. Lord、Hui Wang、W. E. Moerner、Robert J. Twieg
DOI:10.1021/jo0616660
日期:2006.12.1
We have synthesized the environment-sensitive fluorophores 2-cyano-6-dihexylaminoanthracene and 2-propionyl-6-dihexylaminoanthracene (Anthradan) starting from 2,6-diaminoanthraquinone. Anthradan is the benzologue of the well-known family of naphthalene 2-propionyl-6-dimethylaminonaphthalene (PRODAN) fluorophores. The additional spectral red shift of the anthracene avoids the autofluorescence of many biological systems and provides for more favorable excitation wavelengths for fluorescence applications. Furthermore, Anthradan exhibits polarity-sensitive emission comparable to that of PRODAN and displays high quantum yields in a range of solvents. Single molecules of these anthracene-containing fluorophores have been imaged in polymer hosts as a proof-of-principle.
CAPRYDAA, an anthracene dye analog to LAURDAN: a comparative study using cuvette and microscopy
synthesized an anthracene derivative with solvatochromic properties to be used as a molecular probe for membranedynamics and supramolecular organization. A nine carbon atom acyl chain and a dimethylamino substitution were introduced at positions 2 and 6 of the anthracene ring, respectively. This derivative, 2-nonanoyl-6-(dimethylamino)anthracene (termed CAPRYDAA), is a molecular probe designed to mimic