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      Luminescent 1,8‐Naphthalimide‐Derived ReI Complexes: Syntheses, Spectroscopy, X‐ray Structure and Preliminary Bioimaging in Fission Yeast Cells

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      https://www.riss.kr/link?id=O120787786

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      다국어 초록 (Multilingual Abstract)

      A series of picolyl‐functionalised, fluorescent 1,8‐naphthalimide ligands (L) have been synthesised and coordinated to ReI to form luminescent cationic complexes of the general form fac‐[Re(phen)(CO)3(L)]BF4. The complexes were characterised by ...

      A series of picolyl‐functionalised, fluorescent 1,8‐naphthalimide ligands (L) have been synthesised and coordinated to ReI to form luminescent cationic complexes of the general form fac‐[Re(phen)(CO)3(L)]BF4. The complexes were characterised by using a range of spectroscopic and analytical techniques. One example of a complex was also characterised in the solid‐state by using single‐crystal X‐ray diffraction, revealing a distorted octahedral coordination sphere at ReI and Re–C/Re–N bond lengths within the expected ranges. All ligands were shown to be fluorescent, with the 4‐amino derivatives showing intramolecular charge transfer in the visible region (511–534 nm). The complexes generally showed a mixture of ligand‐centred and/or 3MLCT emission depending upon the nature of the coordinated 1,8‐naphthalimide ligand. For selected complexes, confocal fluorescence microscopy was undertaken by using fission yeast cells (Schizosaccharomyces pombe) and showed that the structure of the 1,8‐naphthalimide ligand influences the uptake and localisation of the rhenium complex.
      1,8‐Naphthalimide‐derived, picolyl‐based ligands have been coordinated to ReI to form luminescent complexes. The complexes were characterised by using an array of spectroscopic methods, and one example provided an X‐ray crystal structure. Selected complexes were explored as fluorescence cell imaging agents by using fission yeast cells.

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