A new series of Schiff base Ni(II)4 cubanes: Evaluation of magnetic coupling via carboxylate bridges.

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F21%3APU138456" target="_blank" >RIV/00216305:26620/21:PU138456 - isvavai.cz</a>
Alternative codes found
RIV/61989592:15310/21:73609418
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0277538720306744" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0277538720306744</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.poly.2020.115017" target="_blank" >10.1016/j.poly.2020.115017</a>

Result language
angličtina
Original language name
A new series of Schiff base Ni(II)4 cubanes: Evaluation of magnetic coupling via carboxylate bridges.
Original language description
The Schiff base ligand H2L has been synthesized by condensation of 2-aminophenol with 3-methyl-1-phenyl-4-formylpyrazol-5-one and reaction between H2L and Ni(OOCR3)2, R = H in 1, –CH3 in 2, Cl in 3, yielded three new tetranuclear Ni(II) complexes. The complexes have been characterized by elemental analysis, IR- and ES-MS spectroscopy. Their structures as well as structure of ligand were determined by single-crystal X-ray diffraction. Compounds 1–3 possesses tetranuclear cubane-like structures containing [Ni4L4(R3COO)2]2− complex anions, which are charge balanced by two triethyl ammonium cations. Furthermore, the crystal structure of the Ni(II) cubane compound containing trichloroacetate bridging ligands, is reported for the first time. Variable temperature magnetic susceptibility measurements revealed interplay between ferromagnetic and antiferromagnetic exchange in the tetranuclear cubane-like compounds 1–3, in which ferromagnetic interactions were enhanced by introducing carboxylate bridging groups. DFT calculations supported the analysis of magnetic data.
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
—
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
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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