http://www.cnr.it/ontology/cnr/individuo/prodotto/ID51125
Bis(BF2)-2,2 -Bidipyrrins (BisBODIPYs): Highly Fluorescent BODIPY Dimers with Large Stokes Shifts (Articolo in rivista)
- Type
- Label
- Bis(BF2)-2,2 -Bidipyrrins (BisBODIPYs): Highly Fluorescent BODIPY Dimers with Large Stokes Shifts (Articolo in rivista) (literal)
- Anno
- 2008-01-01T00:00:00+01:00 (literal)
- Alternative label
M. Bröring, R. Krüger, S. Link, C. Kleeberg, S. Köhler, X. Xie, B. Ventura, L. Flamigni (2008)
Bis(BF2)-2,2 -Bidipyrrins (BisBODIPYs): Highly Fluorescent BODIPY Dimers with Large Stokes Shifts
in Chemistry (Weinh., Print)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- M. Bröring, R. Krüger, S. Link, C. Kleeberg, S. Köhler, X. Xie, B. Ventura, L. Flamigni (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Fachbereich Chemie Philipps-Universitat Marburg, Hans-Meerwein-Straße 35043 Marburg (Germany)
Istituto ISOF-CNR, Via P. Gobetti 101 40129 Bologna (Italy) (literal)
- Titolo
- Bis(BF2)-2,2 -Bidipyrrins (BisBODIPYs): Highly Fluorescent BODIPY Dimers with Large Stokes Shifts (literal)
- Abstract
- Four new dimeric bisACHTUNGTRENUNG(BF2)-
2,2'-bidipyrrins (bisBODIPYs), and
their corresponding BODIPY monomers,
have been prepared and studied
with respect to their structural and
photophysical properties. The solidstate
molecular structure of the dimers
and the relative orientation of the subunits
have been revealed by an X-ray
diffraction study, which showed that
the molecules contain two directly
linked BODIPY chromophores in a
conformationally fixed, almost orthogonal
arrangement. Two of the fluorine
atoms are in close contact with each
other and the 19F NMR spectra show a
characteristic through-space coupling
in solution. The new chromophores all
exhibit a clear exciton splitting in the
absorption spectra with maxima at
about 490 and 560 nm, and are highly
luminescent with an intense emission
band at around 640 nm. The Stokes
shift, which is the difference between
the maximum of the lowest-energy absorption
band and the maximum of the
emission band, has a typical value of 5
to 15 nm for simple BODIPYs, whereas
this value increases to 80 nm or
more for the dimers, along with a slight
decrease in fluorescence quantum
yields and lifetimes. These properties
indicate potential uses of these new fluorophoric
materials as functional dyes
in biomedical and materials applications
and also in model compounds for
BODIPY aggregates. (literal)
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