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RESEARCH PRODUCT

Synthesis and characterization of a novel high luminescent gold-2-mercapto-1-methyl-imidazole complex

Gianfranco CarotenutoPellegrino ConteGiuseppe AlonzoGiorgio Cardone

subject

fluorescence spectrofotometryLuminescenceMagnetic Resonance SpectroscopyBand gapSettore AGR/13 - Chimica AgrariaBiophysicsQuantum yieldPhotochemistryimidazolechemistry.chemical_compoundNMR spectroscopyOrganic chemistryImidazoleThermal analysisCalorimetry Differential ScanningImidazolesNuclear magnetic resonance spectroscopyFluorescenceCharacterization (materials science)Spectrometry Fluorescencethermal analysichemistryChemistry (miscellaneous)Goldsuperfluorescencequantum yieldLuminescence

description

Synthesis and characterization of a new gold-2-mercapto-1-methyl imidazole are reported. This new organic material shows an extraordinary fluorescence activity (superfluorescence) up to 220°C with an unusual quantum yield of 0.2. Both fluorescence and NMR spectroscopy were applied to understand the behavior of the gold-2-mercapto-1-methylimidazole complex. Results suggest that the superfluorescence activity can be attributed to the shrinking of the HOMO-LUMO band gap energy following complexation of the organic imidazole system with gold. Copyright © 2010 John Wiley & Sons, Ltd.

https://doi.org/10.1002/bio.1260