850913-06-3Relevant academic research and scientific papers
Synthesis and characterisation of highly emissive and kinetically stable lanthanide complexes suitable for usage 'in cellulo'
Poole, Robert A.,Bobba, Gabriella,Cann, Martin J.,Frias, Juan-Carlos,Parker, David,Peacock, Robert D.
, p. 1013 - 1024 (2005)
The synthesis and photophysical characterisation are reported of a series of cationic, neutral and anionic europium and terbium complexes based on structurally related, nonadentate ligands based on the cyclen macrocycle. Each complex incorporates a tetraazatriphenylene moiety and overall absolute emission quantum yields are in the range 15-40% in aerated aqueous media. Dynamic quenching of the lanthanide excited state occurs with electron-rich donors, e.g. iodide, ascorbate and urate, and a mechanistic interpretation is put forward involving an electron transfer process. The cationic lanthanide complexes are taken up by N1H/3T3 cells and tend to localise inside the cell nucleus. The Royal Society of Chemistry 2005.
