Monitoring the Redox-Driven Assembly/Disassembly of a Dicopper(I) Helicate with an Auxiliary Fluorescent Probe

Monitoring the Redox-Driven Assembly/Disassembly of a Dicopper(I) Helicate with an Auxiliary Fluorescent Probe

The assembly/disassembly of a dicopper(I) helicate with a bis-bidentate imine-quinoline ligand is driven by the CuII/CuI redox change and is signaled by a fluorescent probe bearing a −COO- group (coumarine 343). The probe coordinates the CuII center of the monomeric complex, which quenches its emiss...

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Veröffentlicht in:Inorganic chemistry 2003-03, Vol.42 (5), p.1632-1636
Hauptverfasser: Amendola, Valeria, Fabbrizzi, Luigi, Pallavicini, Piersandro, Sartirana, Elisabetta, Taglietti, Angelo
Format: Artikel
Sprache:eng
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Zusammenfassung:The assembly/disassembly of a dicopper(I) helicate with a bis-bidentate imine-quinoline ligand is driven by the CuII/CuI redox change and is signaled by a fluorescent probe bearing a −COO- group (coumarine 343). The probe coordinates the CuII center of the monomeric complex, which quenches its emission (fluorescence off), and is released upon reduction and formation of the CuI helicate (fluorescence on).
ISSN:0020-1669
1520-510X
DOI:10.1021/ic026061a