Magnetism of Manganese Complexes with Fluorinated Benzimidazole-Substituted Nitronyl Nitroxides

A series of layered compounds of the formula {[Mn2(radical)3](ClO4)}n was obtained by a reaction (in methanol) of manganese(II) acetate with 2-(2-benzimidazolyl)-4,4,5,5-tetramethylimidazolidinyl-1-oxy-3-oxides fluorinated on the benzene ring and by successive addition of sodium perchlorate. This st...

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Veröffentlicht in:Inorganics Jg. 12; H. 12; S. 323
Hauptverfasser: Tretyakov, Evgeny, Bakuleva, Nadejda, Efimov, Nikolay, Kulikova, Elizaveta, Luneau, Dominique
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Basel MDPI AG 01.12.2024
Schlagworte:
Acetic acid
Atomic properties
Benzene
Benzimidazoles
Chemical elements
Chemical Sciences
Crystal structure
Curie temperature
Fluorination
Fluorine
Fluorine compounds
Free radicals
Free radicals (Chemistry)
heterospin complexes
layered compounds
Ligands
Magnetic fields
Magnetic properties
Magnetism
Manganese
manganese(II)
Methanol
molecular magnetism
nitronyl nitroxides
Perchloric acid
Sodium perchlorate
Substitutes
Temperature
ISSN:2304-6740, 2304-6740
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Zusammenfassung:A series of layered compounds of the formula {[Mn2(radical)3](ClO4)}n was obtained by a reaction (in methanol) of manganese(II) acetate with 2-(2-benzimidazolyl)-4,4,5,5-tetramethylimidazolidinyl-1-oxy-3-oxides fluorinated on the benzene ring and by successive addition of sodium perchlorate. This study showed that the magnetic properties of the complexes are sensitive to the number and arrangement of fluorine atoms in the paramagnetic ligands. It was found that the heterospin complex with 4-FBzIm-NN behaves as a magnet with Curie temperature TC = 50 K, which is close to that of the {[Mn2(BzIm-NN)3](ClO4)}n complex containing a nonfluorinated ligand. Meanwhile, no 3D ordering was noted for complexes with difluorinated and 5-fluoro-substituted ligands.
Bibliographie:ObjectType-Article-1
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content type line 14
ISSN:2304-6740
2304-6740
DOI:10.3390/inorganics12120323