Tris(aryltriazolylmethyl)amine compounds have been synthesized by a one-pot triple click reaction of azides from anilines with tripropargylamine. The resulting tripodal ligands have been employed to obtain six new Ce3+ complexes. The formation of the new complexes, which were obtained both as heteroleptic or homoleptic types, is influenced by the nature of the counterion (nitrate, perchlorate, or triflate) of the starting Ce3+ salts. All the new Ce3+-based complexes are highly stable both in solution and in the solid state. Their structural features have been at first studied by NMR spectroscopy. In addition, by combining experimental and DFT theoretical approaches, the X-ray structure of one heteroleptic complex has been used to simulate the structures of all the remaining complexes. Finally, both the heteroleptic and the homoleptic complexes are luminescent, and the analysis of their photophysical properties indicate that the Ce3+ center regulates the occurrence of radiative processes.

Triple click to tripodal triazole-based ligands-synthesis and characterization of blue-emitting Ce3+ complexes

Baschieri A.;
2013-01-01

Abstract

Tris(aryltriazolylmethyl)amine compounds have been synthesized by a one-pot triple click reaction of azides from anilines with tripropargylamine. The resulting tripodal ligands have been employed to obtain six new Ce3+ complexes. The formation of the new complexes, which were obtained both as heteroleptic or homoleptic types, is influenced by the nature of the counterion (nitrate, perchlorate, or triflate) of the starting Ce3+ salts. All the new Ce3+-based complexes are highly stable both in solution and in the solid state. Their structural features have been at first studied by NMR spectroscopy. In addition, by combining experimental and DFT theoretical approaches, the X-ray structure of one heteroleptic complex has been used to simulate the structures of all the remaining complexes. Finally, both the heteroleptic and the homoleptic complexes are luminescent, and the analysis of their photophysical properties indicate that the Ce3+ center regulates the occurrence of radiative processes.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11697/139075
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 19
  • ???jsp.display-item.citation.isi??? 18
social impact