Ligand-field effect to harness the magnetic anisotropy in a series of mixed valence Co (III)-Co (II) dinuclear complexes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F24%3A73627680" target="_blank" >RIV/61989592:15310/24:73627680 - isvavai.cz</a>

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/epdf/10.1002/aoc.7441" target="_blank" >https://onlinelibrary.wiley.com/doi/epdf/10.1002/aoc.7441</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/aoc.7441" target="_blank" >10.1002/aoc.7441</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Ligand-field effect to harness the magnetic anisotropy in a series of mixed valence Co (III)-Co (II) dinuclear complexes

Popis výsledku v původním jazyce

Three mixed valence dinuclear Co (III)-Co (II)-based complexes having general formulae of [CoIICoIII (HL2)2(L1)] [L1H = 2-hydroxy-1-naphthaldehyde (1), o-vanillin (2), and salicylaldehyde (3)] have been synthesized successfully using Schiff base (LH4) ligand. The complexes were characterized by single-crystal XRD, powder XRD, IR, and UV-Vis analyses. The CoII ion with elongated octahedral geometry conferred significant magnetic anisotropy with D values being 64.0(8), 71.1(7), and 52.1(3) cm-1 for 1, 2, and 3, respectively. These complexes exhibited single-molecule magnet behavior with magnetic relaxation occurring mainly through Raman for 1 and 3 whereas direct and Raman for complex 2. The analysis of the static and dynamic magnetic properties was further supported by theoretical calculations using CASSCF/DLPNO-NEVPT2. Three Co (III)-Co (II) mixed valence dinuclear complexes were synthesized and characterized using various techniques. These complexes exhibited elongated octahedral geometry around Co (II) ion, significant magnetic anisotropy, and field-induced single-molecule magnet behavior with magnetization relaxation through Raman, Orbach, and direct processes. The analysis of magnetic properties was complemented by theoretical calculations. image

Název v anglickém jazyce

Ligand-field effect to harness the magnetic anisotropy in a series of mixed valence Co (III)-Co (II) dinuclear complexes

Popis výsledku anglicky

Three mixed valence dinuclear Co (III)-Co (II)-based complexes having general formulae of [CoIICoIII (HL2)2(L1)] [L1H = 2-hydroxy-1-naphthaldehyde (1), o-vanillin (2), and salicylaldehyde (3)] have been synthesized successfully using Schiff base (LH4) ligand. The complexes were characterized by single-crystal XRD, powder XRD, IR, and UV-Vis analyses. The CoII ion with elongated octahedral geometry conferred significant magnetic anisotropy with D values being 64.0(8), 71.1(7), and 52.1(3) cm-1 for 1, 2, and 3, respectively. These complexes exhibited single-molecule magnet behavior with magnetic relaxation occurring mainly through Raman for 1 and 3 whereas direct and Raman for complex 2. The analysis of the static and dynamic magnetic properties was further supported by theoretical calculations using CASSCF/DLPNO-NEVPT2. Three Co (III)-Co (II) mixed valence dinuclear complexes were synthesized and characterized using various techniques. These complexes exhibited elongated octahedral geometry around Co (II) ion, significant magnetic anisotropy, and field-induced single-molecule magnet behavior with magnetization relaxation through Raman, Orbach, and direct processes. The analysis of magnetic properties was complemented by theoretical calculations. image

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

APPLIED ORGANOMETALLIC CHEMISTRY

ISSN

0268-2605

e-ISSN

1099-0739

Svazek periodika

38

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

15

Strana od-do

"e7441-1"-"e7441-15"

Kód UT WoS článku

001183715900001

EID výsledku v databázi Scopus

2-s2.0-85187535508