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Synfacts 2008(11): 1167-1167  
DOI: 10.1055/s-0028-1083470
Synthesis of Materials and Unnatural Products
© Georg Thieme Verlag Stuttgart ˙ New York

A Ratiometric Turn-on Cobalt Sensor

Contributor(s): Timothy M. Swager, Jan M. Schnorr
W. Lin*, L. Yuan, L. Long, C. Guo, J. Feng
Hunan University, Changsha, P. R. of China
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Publikationsdatum:
23. Oktober 2008 (online)

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Significance

The authors present a cobalt sensor exhibiting a large ratiometric fluorescence response. The sensing unit 5 consists of a zinc porphyrin substituted with three coumarin-derived moieties and one cobalt-binding 2,2′-bipyridyl unit. It is obtained via condensation of the aldehydes 1 and 2 with pyrrole and subsequent treatment with zinc acetate.