Lanthanoplatins: emissive Eu(iii) and Tb(iii) complexes staining nucleoli targeted through Pt–DNA crosslinking†
Abstract
Two highly luminescent water-soluble heterometallic LnPt2 complexes, [{cis-PtCl(NH3)2}2Ln(L)(H2O)](NO3)2 (Ln = Eu (1), Tb (2)), have been designed for their selective nucleoli staining through formation of Pt–DNA crosslinks. The complexes showed significant cellular uptake and distinctive nucleoli localization through intrinsic emission from EuIII or TbIII observed through confocal fluorescence microscopy.