Repozytorium
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Kolekcje
Inne
Spectroscopy of europium and terbium pyridine-carboxylates.
Autorzy
Rok wydania
2004
Czasopismo
Journal of Alloys and Compounds
Numer woluminu
380
Strony
279-284
DOI
10.1016/j.jallcom.2004.03.055
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
Luminescence, luminescence excitation, IR, and Raman spectra of europium and terbium isomeric pyridine-carboxylates: isonicotinates, nicotinates and picolinates were studied. The ways of the excitation energy transfer from the ligand to Ln3+ were analysed in dependence on the structure and the type of co-ordination of ligand. Intraligand charge transfer bands and Tb3+ f–d transition bands were identified in the luminescence excitation spectra of terbium and europium compounds. Co-ordination of nitrogen atom by terbium ion in picolinates (and dipicolinates) causes low-frequency shift of the f–d bands and promotes the excitation of luminescence through d-states of Tb3+.
Słowa kluczowe
Lanthanide pyridine-carboxylates, Luminescence spectra, Luminescence excitation spectra, Vibration spectra, Charge transfer
Adres publiczny
https://doi.org/10.1016/j.jallcom.2004.03.055
Strona internetowa wydawcy
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