Ferrimagnetic Nature of Composite Products Based on 1,1'-Diacetylferrocene, Caprolactam, and Taurineстатья
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Дата последнего поиска статьи во внешних источниках: 28 октября 2020 г.
Аннотация:Nuclear gamma resonance (NGR) is used to study powders of externally homogeneous magnetitelike substances that form in the reaction between 1,1'-diacetylferrocene and caprolactam and 2-aminoethanesulfonic acid in a relatively low range of temperatures (100–180 C). The powders are shown to consist of magnetite and a ferrocene-containing matrix that contains 1,1'-diacetyleferrocene and an organicnitrogen-containing component. In studying the temperature dependence of the NGR spectra in the rangeof 295–80 K, it is established that a fast effective exchange of electrons occurs in the samples both internallyand between two Fe2+/Fe3+ subsystems, ferrocene/ferricenium and sublattice B of magnetite. As a result,classical mechanisms of electron exchange retardation and the phase ordering of the magnetite structure donot work, and no Verwey transition is observed in the samples.