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Three angular Zn2Dy complexes showing the effect of remote coordination at Zn and counter ions on slow magnetic relaxation at Dy centres
ID
Panja, Anangamohan
(
Avtor
),
ID
Jagličić, Zvonko
(
Avtor
),
ID
Herchel, Radovan
(
Avtor
),
ID
Brandão, Paula
(
Avtor
),
ID
Pramanik, Kuheli
(
Avtor
),
ID
Jana, Narayan Ch.
(
Avtor
)
URL - Izvorni URL, za dostop obiščite
https://pubs.rsc.org/en/content/articlelanding/2022/NJ/D2NJ01759H
Galerija slik
Izvleček
Three new angular trinuclear Zn2Dy complexes, [Dy{Zn(L)Cl}2(H2O)2]Cl3H2O (1), [Dy{Zn(L)Br}2(H2O)2](NO3) 6H2O (2) and [Dy{Zn(L)I}2(H2O)2](NO3)6H2O (3), derived from a methyl substituted o-vanillin based Schiff base ligand, N,N0 -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 singlemolecule 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.
Jezik:
Angleški jezik
Ključne besede:
molekularni magnetizem
,
Zn2Dy complexes
Vrsta gradiva:
Članek v reviji
Tipologija:
1.01 - Izvirni znanstveni članek
Organizacija:
FGG - Fakulteta za gradbeništvo in geodezijo
FMF - Fakulteta za matematiko in fiziko
Datum objave:
01.01.2022
Leto izida:
2022
Št. strani:
Str. 13546-13557
Številčenje:
Vol. 46, iss. 28, art. 13546
PID:
20.500.12556/RUL-146426
UDK:
544
ISSN pri članku:
1369-9261
DOI:
10.1039/d2nj01759h
COBISS.SI-ID:
143373315
Datum objave v RUL:
31.05.2023
Število ogledov:
333
Število prenosov:
18
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Objavi na:
Gradivo je del revije
Naslov:
New journal of chemistry
Skrajšan naslov:
New j. chem.
Založnik:
Royal Society of Chemistry
ISSN:
1369-9261
COBISS.SI-ID:
22573573
Sekundarni jezik
Jezik:
Slovenski jezik
Ključne besede:
molekularni magnetizem
,
kompleks Zn2Dy
Projekti
Financer:
ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:
P2-0348
Naslov:
Nove slikovno-analitske metode
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