Additions and corrections
Aminopropargyl derivative of terpyridine-bis(methyl-enamine) tetraacetic acid chelate of europium (Eu (TMT)-AP3): a new reagent for fluorescent labelling of proteins and peptides
Séverine Poupart, Cédric Boudou, Philippe Peixoto, Marc Massonneau, Pierre-Yves Renard and Anthony Romieu
Organic & Biomolecular Chemistry, 2006, 4, 4165–4177 (DOI: 10.1039/b612805j) Amendment published 31st July 2008
The authors regret the following error:
Quantum yield (φ) and brightness (εφ) values determined for Eu (TMT)-AP3 chelate 3 and reported in Table 1, were calculated from raw data recorded in the "fluorescence mode" of our Varian Cary Eclipse spectrophotometer.
Due to the long luminescence lifetime of 3, the "phosphorescence mode" (for which it is possible to tune the "total decay time" parameter to a higher value: 10 ms) is more suitable to record all the luminescence emitted by this lanthanide chelate. Thus, φ (0.169 compared to 0.0064) and εφ (5570 compared to 210) were found to be dramatically higher than the initial reported values.
Acknowledgments
We thank Dr Loïc J. Charbonnière (Laboratoire de Chimie Organique et Spectroscopies Avancées, UMR CNRS 7509, ECPM Strasbourg) for his advice on spectral measurements of lanthanide chelates.
The Royal Society of Chemistry apologises for this error and any consequent inconvenience to authors and readers.