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Luminescence. 2011 Nov-Dec;26(6):506-9. doi: 10.1002/bio.1260. Epub 2010 Oct 29.

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

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1
Institute of Composite and Biomedical Materials, National Research Council, Piazzale Tecchio, 80-80125 Napoli, Italy.

Abstract

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.

PMID:
22162452
DOI:
10.1002/bio.1260
[Indexed for MEDLINE]
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