Effect of the Counterion on Circularly Polarized Luminescence of Europium(III) and Samarium(III) Complexes.

ABSTRACT: Each enantiopure europium(III) and samarium(III) nitrate and triflate complex of the ligand L, with L = N,N'-bis(2-pyridylmethylidene)-1,2-(R,R + S,S)-cyclohexanediamine ([LnL(tta)₂]·NO₃ and [LnL(tta)₂(H₂O)]·CF₃SO₃, where tta = 2-thenoyltrifluoroacetylacetonate) has been synthesized and characterized from a spectroscopic point of view, using a chiroptical technique such as electronic circular dichroism (ECD) and circularly polarized luminescence (CPL). In all cases, both ligands are capable of sensitizing the luminescence of both metal ions upon absorption of light around 280 and 350 nm. Despite small differences in the total luminescence (TL) and ECD spec

SUBMITTER: Arrico L 

PROVIDER: S-EPMC7997384 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature