Ferromagnetically coupled tetranuclear Ni(ii)-2-oxy-aceto- or benzo-phenonate complexes
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F25%3A73633977" target="_blank" >RIV/61989592:15310/25:73633977 - isvavai.cz</a>
Výsledek na webu
<a href="https://pubs.rsc.org/en/content/articlepdf/2025/ra/d4ra08700c" target="_blank" >https://pubs.rsc.org/en/content/articlepdf/2025/ra/d4ra08700c</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/d4ra08700c" target="_blank" >10.1039/d4ra08700c</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Ferromagnetically coupled tetranuclear Ni(ii)-2-oxy-aceto- or benzo-phenonate complexes
Popis výsledku v původním jazyce
Reaction of 2-hydroxy-acetophenone (HL) or 2-hydroxy-benzophenone (HL ') with nickel(ii) acetate provides the tetrakis-[(mu 3-methanolato-kappa 3O:O:O)(methanol-kappa O)(2-oxyacetophenone-kappa 2O,O ')nickel(ii)], [Ni(L)(mu 3-CH3O)(CH3OH)]4 (1) or tetrakis-[(mu 3-methanolato-kappa 3O:O:O)(aqua-kappa O)(2-oxybenzophenone-kappa 2O,O ')nickel(ii)] monohydrate, [Ni(L ')(mu 3-CH3O)(H2O)]4<middle dot>H2O (2). Molecular structure determination demonstrates each nickel(ii) ion is six-coordinate with a distorted octahedral geometry defined by three oxygen atoms from three methoxide fragments, a methanol (1) or water (2) molecule, and two oxygen atoms from the acetophenonate (L-) or benzophenonate (L '-) ligand, such that the four nickel atoms and four methoxide groups represent a cubane-type structural topology with each methoxide fragment bridging three of the metal centers. Stabilization of the cubane core occurs via intramolecular O-H & ctdot;O hydrogen bonds. Solid-state magnetic measurements along with computational modeling confirm dominant ferromagnetic interactions for the compounds, attributed to their cubane topology and the Ni-O-Ni angles adopting values lower than 100 degrees. Thermogravimetric analysis (TGA) suggests thermal decomposition of the complexes with successive release of the lattice water, coordinated solvents (MeOH or H2O), OCH3 groups and fragmented ligand species, supported by differential scanning calorimetry (DSC) studies. Cyclic voltammetry reveals a quasi-reversible two electrons charge transfer process in N,N-dimethylformamide.
Název v anglickém jazyce
Ferromagnetically coupled tetranuclear Ni(ii)-2-oxy-aceto- or benzo-phenonate complexes
Popis výsledku anglicky
Reaction of 2-hydroxy-acetophenone (HL) or 2-hydroxy-benzophenone (HL ') with nickel(ii) acetate provides the tetrakis-[(mu 3-methanolato-kappa 3O:O:O)(methanol-kappa O)(2-oxyacetophenone-kappa 2O,O ')nickel(ii)], [Ni(L)(mu 3-CH3O)(CH3OH)]4 (1) or tetrakis-[(mu 3-methanolato-kappa 3O:O:O)(aqua-kappa O)(2-oxybenzophenone-kappa 2O,O ')nickel(ii)] monohydrate, [Ni(L ')(mu 3-CH3O)(H2O)]4<middle dot>H2O (2). Molecular structure determination demonstrates each nickel(ii) ion is six-coordinate with a distorted octahedral geometry defined by three oxygen atoms from three methoxide fragments, a methanol (1) or water (2) molecule, and two oxygen atoms from the acetophenonate (L-) or benzophenonate (L '-) ligand, such that the four nickel atoms and four methoxide groups represent a cubane-type structural topology with each methoxide fragment bridging three of the metal centers. Stabilization of the cubane core occurs via intramolecular O-H & ctdot;O hydrogen bonds. Solid-state magnetic measurements along with computational modeling confirm dominant ferromagnetic interactions for the compounds, attributed to their cubane topology and the Ni-O-Ni angles adopting values lower than 100 degrees. Thermogravimetric analysis (TGA) suggests thermal decomposition of the complexes with successive release of the lattice water, coordinated solvents (MeOH or H2O), OCH3 groups and fragmented ligand species, supported by differential scanning calorimetry (DSC) studies. Cyclic voltammetry reveals a quasi-reversible two electrons charge transfer process in N,N-dimethylformamide.
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
—
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2025
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
RSC Advances
ISSN
2046-2069
e-ISSN
—
Svazek periodika
15
Číslo periodika v rámci svazku
6
Stát vydavatele periodika
GB - Spojené království Velké Británie a Severního Irska
Počet stran výsledku
12
Strana od-do
4250-4261
Kód UT WoS článku
001415328300001
EID výsledku v databázi Scopus
2-s2.0-85219438578