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Synthesis and Optical Properties of Phenanthroline‐Derived Schiff Base‐Like Dinuclear RuII–NiII Complexes.
- Source :
-
Chemistry - A European Journal . 4/6/2018, Vol. 24 Issue 20, p5100-5111. 12p. - Publication Year :
- 2018
-
Abstract
- Abstract: Two phenanthroline‐derived Schiff base‐like ligands with a covalently linked ruthenium(II) phosphorescent unit were synthesised and converted into bimetallic RuII–NiII complexes. The optical properties were studied to examine a possible photoluminescence quenching through a nonradiative energy‐transfer upon a coordination‐induced spin‐state switch (CISSS) at the nickel(II) centre. Therefore, the metalloligands and the nickel(II) complexes were studied using UV/Vis absorbance, steady‐state, and time‐resolved emission spectroscopy in solutions of MeCN and pyridine. It is demonstrated that the nature of the bridging ligand between the ruthenium(II) donor and the nickel(II) acceptor strongly influences the photophysical behaviour upon CISSS. For the complex with a phenazine bridge, photoluminescence quenching is observed in the presence of a paramagnetic nickel(II) centre. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09476539
- Volume :
- 24
- Issue :
- 20
- Database :
- Academic Search Index
- Journal :
- Chemistry - A European Journal
- Publication Type :
- Academic Journal
- Accession number :
- 128998506
- Full Text :
- https://doi.org/10.1002/chem.201704632