A manganese (II) dimer bearing the reduced derivatives of nitronyl nitroxides
| Autor: | Federico Lombardi, Simon J. Coles, Fanmiao Kong, Peter N. Horton, Lapo Bogani, Dimitris I. Alexandropoulos |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Metal ions in aqueous solution
Dimer chemistry.chemical_element Conductance Manganese Conductivity Magnetic susceptibility law.invention Inorganic Chemistry chemistry.chemical_compound Crystallography chemistry law Materials Chemistry Antiferromagnetism Physical and Theoretical Chemistry Electron paramagnetic resonance |
| Zdroj: | Polyhedron |
| Popis: | We report the synthesis, magnetic and conducting properties of a new manganese complex [MnII(hfac)2(IMHPhOPh)]2[MnII(hfac)3](IMH2PhOPh) (1), containing the reduced forms (IMHPhOPh and IMH2PhOPh) of the NIT-PhOPh radical (NIT-PhOPh = 2,4‘-benzoxo-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide). Direct current magnetic susceptibility studies revealed the presence of weak antiferromagnetic exchange interactions between the metal ions, within the [MnII(hfac)2(IMHPhOPh)]2 unit. The EPR spectra of 1 exhibit simultaneous contributions of both the monomeric [MnII(hfac)3] and dimeric [MnII(hfac)2(IMHPhOPh)]2 species. Conductivity measurements shown that the electrical conduction of 1 is dominated by Ohm’s law, with a conductance value of 1.3 (6) × 10−9 S/cm. |
| Databáze: | OpenAIRE |
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