Three angular Zn2Dy complexes showing the effect of remote coordination at Zn and counter ions on slow magnetic relaxation at Dy centres
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F22%3A73615205" target="_blank" >RIV/61989592:15310/22:73615205 - isvavai.cz</a>
Výsledek na webu
<a href="https://pubs.rsc.org/en/content/articlepdf/2022/nj/d2nj01759h" target="_blank" >https://pubs.rsc.org/en/content/articlepdf/2022/nj/d2nj01759h</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/d2nj01759h" target="_blank" >10.1039/d2nj01759h</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Three angular Zn2Dy complexes showing the effect of remote coordination at Zn and counter ions on slow magnetic relaxation at Dy centres
Popis výsledku v původním jazyce
Three new angular trinuclear Zn2Dy complexes, [Dy{Zn(L)Cl}(2)(H2O)(2)]Cl center dot 3H(2)O (1), [Dy{Zn(L)Br}(2)(H2O)(2)](NO3)center dot 6H(2)O (2) and [Dy{Zn(L)I}(2)(H2O)(2)](NO3)center dot 6H(2)O (3), derived from a methyl substituted o-vanillin based Schiff base ligand, N,N'-bis(3-methoxy-5-methylsalicylidene)-1,2-phenylenediamine (H2L), have been synthesized and magneto-structurally characterised. In the complex cations in 1-3, the coordination environments of the Dy(III) ions are identical, but the apical coordination to the Zn(II) ion is different as it is bonded to different halide ions. Magnetic studies reveal that both 2 and 3 display field-supported slow magnetic relaxation, consistent with the isomorphic nature of the compounds, while 1 exhibits more pronounced single-molecule magnetic behaviour. The direct fitting of the experimental data as well as the analysis with CASSCF calculations and SINGLE_ANISO module reveals a variation in magnetic anisotropy within the series and the presence of weak antiferromagnetic intermolecular interactions. Therefore, the present report highlights the influence of remote coordination at Zn and counter ions on magnetic anisotropy and on intermolecular antiferromagnetic dipolar interactions, leading to distinct magnetic dynamics in these systems.
Název v anglickém jazyce
Three angular Zn2Dy complexes showing the effect of remote coordination at Zn and counter ions on slow magnetic relaxation at Dy centres
Popis výsledku anglicky
Three new angular trinuclear Zn2Dy complexes, [Dy{Zn(L)Cl}(2)(H2O)(2)]Cl center dot 3H(2)O (1), [Dy{Zn(L)Br}(2)(H2O)(2)](NO3)center dot 6H(2)O (2) and [Dy{Zn(L)I}(2)(H2O)(2)](NO3)center dot 6H(2)O (3), derived from a methyl substituted o-vanillin based Schiff base ligand, N,N'-bis(3-methoxy-5-methylsalicylidene)-1,2-phenylenediamine (H2L), have been synthesized and magneto-structurally characterised. In the complex cations in 1-3, the coordination environments of the Dy(III) ions are identical, but the apical coordination to the Zn(II) ion is different as it is bonded to different halide ions. Magnetic studies reveal that both 2 and 3 display field-supported slow magnetic relaxation, consistent with the isomorphic nature of the compounds, while 1 exhibits more pronounced single-molecule magnetic behaviour. The direct fitting of the experimental data as well as the analysis with CASSCF calculations and SINGLE_ANISO module reveals a variation in magnetic anisotropy within the series and the presence of weak antiferromagnetic intermolecular interactions. Therefore, the present report highlights the influence of remote coordination at Zn and counter ions on magnetic anisotropy and on intermolecular antiferromagnetic dipolar interactions, leading to distinct magnetic dynamics in these systems.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10402 - Inorganic and nuclear chemistry
Návaznosti výsledku
Projekt
—
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2022
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
NEW JOURNAL OF CHEMISTRY
ISSN
1144-0546
e-ISSN
1369-9261
Svazek periodika
46
Číslo periodika v rámci svazku
28
Stát vydavatele periodika
GB - Spojené království Velké Británie a Severního Irska
Počet stran výsledku
12
Strana od-do
13546-13557
Kód UT WoS článku
000817751100001
EID výsledku v databázi Scopus
2-s2.0-85133561125