A Study of Antiferromagnetic Ordering in β-FeF3·3H2O by the Use of the NMR Method

Autor:	V. N. Ikorsky, A. A. Matsutsyn, S. P. Habuda
Rok vydání:	1969
Předmět:	NMR spectra database Paramagnetism Crystallography Chemistry Superexchange Atom Diamagnetism Molecule Antiferromagnetism Spin (physics) Spectroscopy Atomic and Molecular Physics and Optics Analytical Chemistry
Zdroj:	Spectroscopy Letters. 2:339-346
ISSN:	1532-2289 0038-7010
DOI:	10.1080/00387016908050220
Popis:	The present work cites the investigation results of local magnetic fields on 1H and 19F nuclei and spin ordering in β-FeF3·3H2O. In the structure of this compound (space group P42/n, a=7.846 A, c=7.754 A, z=41,2) Fe atoms are bonded via bridged F atoms (1) in infinite chains along the /001/ axis. With such positioning, in which two paramagnetic atoms are separated by a diamagnetic atom (F, O, C1 and others) there is a possibility for indirect (superexchange) interaction. Linear chains … Fe - F - Fe - F - Fe - F … are separated from each other by F(2) atoms and water molecules H2O (1) and H2O (2), so that exchange between neighboring Fe atoms from various chains is ostensibly much encumbered.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::226497deca663d6b5144b96800b275d1 https://doi.org/10.1080/00387016908050220 Zobrazit plný text záznamu