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

Result code in 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>
Result on the web
<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>

Result language
angličtina
Original language name
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
Original language description
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.
Czech name
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Czech description
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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

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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