Antiferromagnetic interactions arising from a close contact between nitroxyl oxygen and β-methyl carbon atoms carrying an α-spin in the solid state

Autor:	Rui Tamura, Satoshi Shimono, Kazuyoshi Masaki, Jun Yamauchi, Hiroki Takahashi, Yoshiaki Uchida, Naohiko Ikuma
Rok vydání:	2006
Předmět:	Crystallography Magnetization chemistry.chemical_compound Spin polarization Chemistry Atom Intermolecular force Inorganic chemistry Antiferromagnetism Molecule Nitroxyl General Chemistry Spin (physics)
Zdroj:	Mendeleev Communications. 16:69-71
ISSN:	0959-9436
DOI:	10.1070/mc2006v016n02abeh002231
Popis:	Antiferromagnetic interactions (|J|/kB > 4.0), which were observed by the magnetization measurement of the powder samples of the racemic nitroxyl radicals trans-2,5-bis(4-methylphenyl)-2,5-dimethylpyrrolidine-1-oxy [(±)-1a] and trans-2,5-bis(4-bromophenyl)-2,5-dimethylpyrrolidine-1-oxy [(±)-2a] at low temperatures, were rationalised in terms of the intermolecular spin polarization exchange coupling or the SOMO–SOMO overlapping owing to a short contact between the nitroxyl oxygen atom and the β-carbon atom of a neighbouring molecule by X-ray crystallographic analysis and DFT calculations.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::66066d1d21adcc2b8013508b681c8395 https://doi.org/10.1070/mc2006v016n02abeh002231 Zobrazit plný text záznamu Full Text from ScienceDirect