Fp. Cossio et al., Berberine cation: A fluorescent chemosensor for alkanes and other low-polarity compounds. An explanation of this phenomenon, ORG LETT, 2(15), 2000, pp. 2311-2313
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Alkanes in the presence of berberine sulfate provide an enhancement of fluo
rescent signal, which depends on alkane concentration and structure, when t
he system is irradiated with monochromatic UV light. Computational analysis
suggests that an ion-induced dipole between alkanes and berberine sulfate
is responsible for this phenomenon. This interaction can properly model the
experimentally obtained fluorescent response. The proposed explanation all
ows other interacting systems to be designed, which have been experimentall
y confirmed.