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Triple Click to Tripodal Triazole‐Based Ligands – Synthesis and Characterization of Blue‐Emitting Ce 3+ Complexes
Author(s) -
Baschieri Andrea,
Mazzanti Andrea,
Stagni Stefano,
Sambri Letizia
Publication year - 2013
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201201361
Subject(s) - homoleptic , chemistry , trifluoromethanesulfonate , perchlorate , tripodal ligand , click chemistry , counterion , ruthenium , nuclear magnetic resonance spectroscopy , photochemistry , polymer chemistry , amine gas treating , combinatorial chemistry , stereochemistry , metal , organic chemistry , ion , catalysis
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 Ce 3+ 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 Ce 3+ salts. All the new Ce 3+ ‐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 Ce 3+ center regulates the occurrence of radiative processes.