2026-04-17T15:48:45Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/1920452025-12-04T21:40:48Zcom_2072_1057col_2072_478917col_2072_478933

Magnetic and Luminescence Properties of 8-Coordinated Pyridyl Adducts of Samarium(III) Complexes Containing 4,4,4-Trifluoro-1-(naphthalen-2-yl)-1,3-butanedionate Mautner, Franz A. Bierbaumer, Florian Vicente Castillo, Ramón Speed Castro, Saskia Tubau Ribot, Ànnia Fischer, Roland C. Massoud, Salah S. Luminescència Propietats magnètiques Raigs X Luminescence Magnetic properties X-rays A novel series of polypyridyl adducts, [Sm(ntfa)3(NN)] (2-4), with ntfa = 4,4,4-trifluoro-1-(naphthalen-2-yl)-1,3-butanedionate, NN = 2,2′-bipyridine (bipy), 4,4′-dimethyl-2,2′-bipyridine (4,4′-Me2bipy), and 5,5′-dimethyl-2,2′-bipyridine (5,5′-Me2bipy) were synthesized from the precursor complex [Sm(ntfa)3(MeOH)2] (1) and the corresponding pyridyl ligands. Single X-ray crystallography showed that the complexes displayed 8-coordinated geometry. The solid pyridyl adducts 2-4 exhibited emission of luminescence in the NIR and visible regions with close quantum yields (QY = 0.20-0.25%). The magnetic data of 1-4 showed larger values than those expected for magnetically noncoupled Sm(III) complexes in the 6H5/2 ground state, with no saturation on the applied high magnetic field static at a temperature of 2 K. 2023-01-10T17:56:56Z 2023-01-10T17:56:56Z 2022 2023-01-10T17:56:56Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2312-7481 https://hdl.handle.net/2445/192045 724729 eng Reproducció del document publicat a: https://doi.org/10.3390/magnetochemistry8070072 Magnetochemistry, 2022, vol. 8, p. 72 https://doi.org/10.3390/magnetochemistry8070072 cc-by (c) Mautner, Franz A. et al., 2022 https://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess application/pdf MDPI Articles publicats en revistes (Química Inorgànica i Orgànica)