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Synthesis and characterisation of highly emissive and kinetically stable lanthanide complexes suitable for usage 'in cellulo'.

Poole, R. A. and Bobba, G. and Cann, M. J. and Frias, J. C. and Parker, D. and Peacock, R. D. (2005) 'Synthesis and characterisation of highly emissive and kinetically stable lanthanide complexes suitable for usage 'in cellulo'.', Organic & biomolecular chemistry., 3 (6). pp. 1013-1024.

Abstract

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.

Item Type:Article
Full text:Full text not available from this repository.
Publisher Web site:http://dx.doi.org/10.1039/b418964g
Record Created:20 Apr 2007
Last Modified:08 Apr 2009 16:30

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