Phenylethynyl-BODIPY oligomers: bright dyes and fluorescent building blocks.
Boradiazaindacene dyes were converted into phenylethynyl-BODIPY oligomers via a cycle of reactions, notably including Sonogashira couplings. As expected, as the number, n, of repeating units increases, peak absorption and emission wavelengths are shifted to the red end of the visible spectrum, albeit with smaller increments as n increases. Decyl groups help to keep the solubility remarkably high, and in addition to being very bright red-emitting fluorophores, their rigid rod-like structures could allow their use as functional building blocks.
Cakmak
Yusuf
Y
Department of Chemistry, Middle East Technical University, 06531 Ankara, Turkey.
Akkaya
Engin U
EU
D015082:2,2'-Dipyridyl / Q000031:analogs & derivatives* / Q000737:chemistry; D000480:Alkynes / Q000737:chemistry*; D001555:Benzene Derivatives / Q000737:chemistry*; D001880:Boranes / Q000737:chemistry*; D001896:Boron Compounds / Q000737:chemistry*; D005453:Fluorescence; D005456:Fluorescent Dyes / Q000138:chemical synthesis / Q000737:chemistry*; D015394:Molecular Structure; D013237:Stereoisomerism
C095489:4,4-difluoro-4-bora-3a,4a-diaza-s-indacene; D000480:Alkynes; D001555:Benzene Derivatives; D001880:Boranes; D001896:Boron Compounds; D005456:Fluorescent Dyes; C476083:boradiazaindacene; D015082:2,2'-Dipyridyl