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Article Abstract

New aminonaphthalimide imidazolium podands, which worked as luminescence chemosensors for selectively sensing nucleoside polyphosphates through a "turn-on" manner, were prepared for fluorescent imaging of ADP and ATP in living cells.

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http://dx.doi.org/10.1039/c004148cDOI Listing

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New aminonaphthalimide imidazolium podands, which worked as luminescence chemosensors for selectively sensing nucleoside polyphosphates through a "turn-on" manner, were prepared for fluorescent imaging of ADP and ATP in living cells.

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Department Of Chemistry, Cardiff University, University of Strathclyde, Cardiff CF10 3TB Glasgow G1 1XL, Wales, Scotland, UK.

The anionic tripodal N-heterocyclic carbene (C3N2H3)3BH- first prepared by Fehlhammer, together with three neutral variants, (C3N2H3)3CH, (C3N2H3)3P, and (C3N2H3)3SiH, have been studied using quantum chemical methods. Isodesmic reactions are used to deduce that the phosphine-bridgehead species in particular has a large-resonance stabilization energy. All the podands undergo substantial conformational change on excitation to the lowest triplet electronic state, with effective localization of the excitation on one of the heterocyclic rings, dearomatizing it.

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