Speed Castro, SaskiaTubau Ribot, ÀnniaVicente Castillo, RamónCastro, EvaFont Bardia, Ma. Mercedes2025-01-202025-01-202023-05-162312-7481https://hdl.handle.net/2445/217710The reaction of [Ln(btfa)3(H2O)2] (btfa− = 4,4,4-trifluoro-1-phenyl-1,3-butanedionate) with additional 4,4,4-trifluoro-1-phenyl-1,3-butanedione (Hbtfa) and acridine (Acr) in ethanol allows the isolation of the mononuclear compounds HAcr[Nd(btfa)4]·EtOH, (1) and HAcr[Ln(btfa)4], Ln = Dy (2) and Yb (3); HAcr+ = acridinium cation. Magnetic measurements indicate that complexes 1–3 show field-induced single-ion magnet behavior with anisotropy energy barriers and preexponential factors of Ueff = 20.7 cm−1, τ0 = 24.5 × 10−8 s; Ueff = 40.5 cm−1, τ0 = 8.6 × 10−10 s and Ueff = 22.7 cm−1, τ0 = 8.4 × 10−8 s, for 1–3 respectively. The solid-state luminescence emission in the NIR region shows efficient energy transfer from the 4,4,4-trifluoro-1-phenyl-1,3-butanedionate ligands to the central Ln3+ ion in the case of compounds 1 and 3.14 p.application/pdfengcc-by (c) Speed Saskia et al., 2023http://creativecommons.org/licenses/by/4.0/ImantsLuminescènciaDifracció de raigs XMagnetsLuminescenceX-rays diffractioninfo:eu-repo/semantics/article7438942025-01-20info:eu-repo/semantics/openAccess