Modulating the Sensor Response to Halide Using NBD-Based Azamacrocycles
| Autor: | Gianluca Ambrosi, Aurora Tassoni, Vieri Fusi, Mirco Fanelli, Elisa Borgogelli, Eleonora Macedi, Paola Paoli, Luca Giorgi, Patrizia Rossi, Mauro Formica, Stefano Amatori, Mauro Micheloni |
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| Rok vydání: | 2014 |
| Předmět: |
Aza Compounds
Macrocyclic Compounds Chemistry Ligand Proton Magnetic Resonance Spectroscopy Inorganic chemistry Halide Crystal structure Ligands Chloride Fluorescence Inorganic Chemistry Metal chemistry.chemical_compound Halogens visual_art Polymer chemistry visual_art.visual_art_medium medicine Physical and Theoretical Chemistry Acetonitrile Stoichiometry medicine.drug |
| Zdroj: | Inorganic Chemistry. 53:4560-4569 |
| ISSN: | 1520-510X 0020-1669 |
| DOI: | 10.1021/ic5001649 |
| Popis: | Ligand L (2,6-bis{[7-(7-nitrobenzo[1,2,5]oxadiazole-4-yl)-3,10-dimethyl-1,4,7,10-tetraazacyclododeca-1-yl]methyl}phenol) is a fluorescent sensor that is useful for detecting Cu(II), Zn(II), and Cd(II). Some of the complexes formed are able to sense the presence of halides in solution. L passes through the cellular membrane, becoming fluorescent inside cells. The H(-1)L- species is able to form dinuclear complexes with [M(2)H(-1)L]3+ stoichiometry with Cu(II), Zn(II), and Cd(II) ions, experiencing a CHEF effect upon metal coordination in an acetonitrile/water 95:5 (v/v) solution. In all three of the complexes investigated, the metal cations are coordinatively unsaturated and can therefore bind secondary ligands as anionic species. The crystal structure of [Cd(2)(H(-1)L)Cl(2)](ClO(4))·4H(2)O is discussed. The Zn(II) complex behaves as an OFF-ON sensor for fluoride and chloride anions. |
| Databáze: | OpenAIRE |
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