Influence of bridging and chelating co-ligands on the distinct single-molecule magnetic behaviours in ZnDy complexes
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F22%3A73615214" target="_blank" >RIV/61989592:15310/22:73615214 - isvavai.cz</a>
Result on the web
<a href="https://pubs.rsc.org/en/content/articlepdf/2022/nj/d2nj03793a" target="_blank" >https://pubs.rsc.org/en/content/articlepdf/2022/nj/d2nj03793a</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/d2nj03793a" target="_blank" >10.1039/d2nj03793a</a>
Alternative languages
Result language
angličtina
Original language name
Influence of bridging and chelating co-ligands on the distinct single-molecule magnetic behaviours in ZnDy complexes
Original language description
Four new heterometallic ZnDy complexes, [ZnDy(L)(NO3)(3)(py)]center dot CH2Cl2 (1) (py stands for pyridine), [ZnDy(L)(mu-OAc)(OAc)(2)]center dot 3H(2)O (2), [ZnDy(L)(mu-OAc)(OAc)(NO3)] (3), and [ZnDy(L)(mu-piv)(piv)(2)][ZnDy(L)(mu-piv)(piv)(OAc)]center dot 1.5H(2)O (4), have been synthesized from a methyl substituted o-vanillin based compartmental Schiff base ligand, N,N'-bis(3-methoxy-5-methylsalicylidene)-1,2-phenylenediamine (H2L), in association with various secondary co-ligands like acetate (OAc), nitrate and pivalate (piv), and magneto-structurally characterised. They possess a nearly identical [Zn(II)-Dy(III)] core, bridged by the phenoxo-O atoms of the compartmental Schiff base ligand. Magnetic studies revealed the distinct single-molecule magnetic (SMM) behaviours through single to multiple relaxation channels, in which 1, 2 and 4 can display slow relaxation of magnetisation at a zero dc field, the performance of which can be further improved by applying a magnetic field at the expense of the reduction of under barrier relaxation processes, while 3 shows only field-induced weaker slow magnetic relaxation behaviours. Ab initio calculations were performed for the in-depth understanding of the magnetic dynamics in these complexes. The difference in the magnetic behaviours of the four complexes can be ascribed to the effect of bridging/chelating co-ligands in these complexes. Therefore, the present report highlights that the magnetic anisotropy is sensitive to the bridging/chelating co-ligands used, leading to the distinct magnetic dynamics in these systems.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10402 - Inorganic and nuclear chemistry
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
NEW JOURNAL OF CHEMISTRY
ISSN
1144-0546
e-ISSN
1369-9261
Volume of the periodical
46
Issue of the periodical within the volume
39
Country of publishing house
GB - UNITED KINGDOM
Number of pages
13
Pages from-to
18751-18763
UT code for WoS article
000855874000001
EID of the result in the Scopus database
2-s2.0-85139432892