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Magnetic Hyperfine Mössbauer Spectra of Ferrocenyaldimines‐FeCl 3 Adducts
Author(s) -
Lee ChiuJhen,
Wei HoHsiang
Publication year - 1993
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.199300055
Subject(s) - chemistry , hyperfine structure , adduct , mössbauer spectroscopy , ferric , condensation , spectral line , schiff base , crystallography , inorganic chemistry , organic chemistry , physics , quantum mechanics , astronomy , thermodynamics
Ferrocenylaldimines (Fc‐CH=N‐R) were prepared by condensation of Schiff base of formylferrocene with polyacenylamines RNH 2 ; R = naphthyl, anthracenyl and pyrenyl groups. This step was followed by oxidation with FeCl 3 to give [Fc‐CH=NR]‐FeCl 3 adducts. The electronic state of iron in these adducts was investigated by means of 57 Fe Mössbauer spectra except for [Fc‐CH=N‐Pyr]‐FeCl 3 showed that only a doublet was observed at ambient temperature. As the temperature was decreased below 200 K, additional magnetic hyperfine splitting was observed characteristic of ferric oxide.