Issue 28, 2021

Structural, magnetic and theoretical analyses of anionic and cationic phthalocyaninato-terbium(iii) double-decker complexes: magnetic relaxation via higher ligand-field sublevels enhanced by oxidation

Abstract

Crystal structural and magnetic analyses were performed for the anionic (1) and cationic (1+) forms of phthalocyaninato-Tb3+ double-decker single-molecule magnets (SMMs). Both charged species showed slow magnetic relaxations and magnetic hysteresis characteristics for SMMs. 1+ showed longer magnetic relaxation times (τ) and higher activation energy for spin reversal (ΔE) than 1 did. Ligand field (LF) splitting calculated using ab initio methods revealed that the experimental ΔE values in 1 and 1+ were considerably larger than the first excited LF levels but rather close to the higher excited ones, indicating the magnetic relaxation via higher excited states.

Graphical abstract: Structural, magnetic and theoretical analyses of anionic and cationic phthalocyaninato-terbium(iii) double-decker complexes: magnetic relaxation via higher ligand-field sublevels enhanced by oxidation

Supplementary files

Article information

Article type
Paper
Submitted
08 Mär 2021
Accepted
25 Mai 2021
First published
10 Jun 2021

Dalton Trans., 2021,50, 9719-9724

Author version available

Structural, magnetic and theoretical analyses of anionic and cationic phthalocyaninato-terbium(III) double-decker complexes: magnetic relaxation via higher ligand-field sublevels enhanced by oxidation

Y. Horii, M. Damjanović, K. Katoh and M. Yamashita, Dalton Trans., 2021, 50, 9719 DOI: 10.1039/D1DT00775K

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