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- Title
Chiral Emissive Lanthanide Complexes from Enantiopure [6]Helicene‐bis(pyrazolyl)‐pyridine Ligands.
- Authors
Abhervé, Alexandre; Mastropasqua Talamo, Maurizio; Vanthuyne, Nicolas; Zinna, Francesco; Di Bari, Lorenzo; Grasser, Maxime; Le Guennic, Boris; Avarvari, Narcis
- Abstract
Enantiopure helicene‐based bis(pyrazol‐1‐yl)pyridine (bpp‐[6]helicene), with the helicene unit in position 4 of the pyridine ring, have been prepared and structurally characterized. Their chiroptical properties have been studied experimentally, and both absorption and circular dichroism (CD) spectra have been reproduced theoretically by time‐dependent density functional theory (TDDFT). Remarkably, in spite of the remote localization of the helicene with respect to the coordination pocket of the bpp motif, chiral Eu(III) complexes based on these ligands show, however, circularly polarized luminescence in the visible region, sustained by TDDFT and CASSCF calculations, which also emphasize the possible antenna effect of the bpp ligand.
- Subjects
TIME-dependent density functional theory; LIGANDS (Chemistry); CIRCULAR dichroism; COORDINATION polymers
- Publication
European Journal of Inorganic Chemistry, 2022, Vol 2022, Issue 11, p1
- ISSN
1434-1948
- Publication type
Article
- DOI
10.1002/ejic.202200010