A new series of Schiff base Ni(II)(4) cubanes: Evaluation of magnetic coupling via carboxylate bridges
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F21%3A73609418" target="_blank" >RIV/61989592:15310/21:73609418 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/00216305:26620/21:PU138456
Výsledek na webu
<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>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
A new series of Schiff base Ni(II)(4) cubanes: Evaluation of magnetic coupling via carboxylate bridges
Popis výsledku v původním jazyce
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 cubanelike compounds 1-3, in which ferromagnetic interactions were enhanced by introducing carboxylate bridging groups. DFT calculations supported the analysis of magnetic data.
Název v anglickém jazyce
A new series of Schiff base Ni(II)(4) cubanes: Evaluation of magnetic coupling via carboxylate bridges
Popis výsledku anglicky
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 cubanelike compounds 1-3, in which ferromagnetic interactions were enhanced by introducing carboxylate bridging groups. DFT calculations supported the analysis of magnetic data.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10402 - Inorganic and nuclear chemistry
Návaznosti výsledku
Projekt
<a href="/cs/project/LO1305" target="_blank" >LO1305: Rozvoj centra pokročilých technologií a materiálů</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2021
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
POLYHEDRON
ISSN
0277-5387
e-ISSN
—
Svazek periodika
196
Číslo periodika v rámci svazku
MAR
Stát vydavatele periodika
GB - Spojené království Velké Británie a Severního Irska
Počet stran výsledku
8
Strana od-do
"115017-1"-"115017-8"
Kód UT WoS článku
000620839300019
EID výsledku v databázi Scopus
2-s2.0-85099260558