The Structural and Magnetic Properties of Fe-II and Co-II Complexes with 2-(furan-2-yl)-5-pyridin-2-yl-1,3,4-oxadiazole

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F20%3A73603188" target="_blank" >RIV/61989592:15310/20:73603188 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.mdpi.com/1420-3049/25/2/277/htm" target="_blank" >https://www.mdpi.com/1420-3049/25/2/277/htm</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/molecules25020277" target="_blank" >10.3390/molecules25020277</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The Structural and Magnetic Properties of Fe-II and Co-II Complexes with 2-(furan-2-yl)-5-pyridin-2-yl-1,3,4-oxadiazole

Popis výsledku v původním jazyce

Two novel coordination compounds containing heterocyclic bidentate N,N-donor ligand 2-(furan-2-yl)-5-(pyridin-2-yl)-1,3,4-oxadiazole (fpo) were synthesized. A general formula for compounds originating from perchlorates of iron, cobalt, and fpo can be written as: [M(fpo)(2)(H2O)(2)](ClO4)(2) (M = Fe(II) for (1) Co(II) for (2)). The characterization of compounds was performed by general physico-chemical methods-elemental analysis (EA), Fourier transform infrared spectroscopy (FT-IR), nuclear magnetic resonance (NMR) in case of organics, and single crystal X-ray diffraction (sXRD). Moreover, magneto-chemical properties were studied employing measurements in static field (DC) for 1 and X-band EPR (Electron paramagnetic resonance), direct current (DC), and alternating current (AC) magnetic measurements in case of 2. The analysis of DC magnetic properties revealed a high spin arrangement in 1, significant rhombicity for both complexes, and large magnetic anisotropy in 2 (D = -21.2 cm(-1)). Moreover, 2 showed field-induced slow relaxation of the magnetization (U-eff = 65.3 K). EPR spectroscopy and ab initio calculations (CASSCF/NEVPT2) confirmed the presence of easy axis anisotropy and the importance of the second coordination sphere.

Název v anglickém jazyce

The Structural and Magnetic Properties of Fe-II and Co-II Complexes with 2-(furan-2-yl)-5-pyridin-2-yl-1,3,4-oxadiazole

Popis výsledku anglicky

Two novel coordination compounds containing heterocyclic bidentate N,N-donor ligand 2-(furan-2-yl)-5-(pyridin-2-yl)-1,3,4-oxadiazole (fpo) were synthesized. A general formula for compounds originating from perchlorates of iron, cobalt, and fpo can be written as: [M(fpo)(2)(H2O)(2)](ClO4)(2) (M = Fe(II) for (1) Co(II) for (2)). The characterization of compounds was performed by general physico-chemical methods-elemental analysis (EA), Fourier transform infrared spectroscopy (FT-IR), nuclear magnetic resonance (NMR) in case of organics, and single crystal X-ray diffraction (sXRD). Moreover, magneto-chemical properties were studied employing measurements in static field (DC) for 1 and X-band EPR (Electron paramagnetic resonance), direct current (DC), and alternating current (AC) magnetic measurements in case of 2. The analysis of DC magnetic properties revealed a high spin arrangement in 1, significant rhombicity for both complexes, and large magnetic anisotropy in 2 (D = -21.2 cm(-1)). Moreover, 2 showed field-induced slow relaxation of the magnetization (U-eff = 65.3 K). EPR spectroscopy and ab initio calculations (CASSCF/NEVPT2) confirmed the presence of easy axis anisotropy and the importance of the second coordination sphere.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

MOLECULES

ISSN

1420-3049

e-ISSN

—

Svazek periodika

25

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

18

Strana od-do

"277-1"-"277-18"

Kód UT WoS článku

000515381800039

EID výsledku v databázi Scopus

2-s2.0-85077864252