Abstract

Nuclear gamma resonance (NGR) is used to study powders of externally homogeneous magnetite-like substances that form in the reaction between 1,1'-diacetylferrocene and ε-caprolactam or 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 organic nitrogen-containing component. In studying the temperature dependence of the NGR spectra in the range of 295–80 K, it is established that a fast effective exchange of electrons occurs in the samples both internally and 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 do not work, and no Verwey transition is observed in the samples.

中文翻译：

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基于1,1'-二乙酰基二茂铁，ε-己内酰胺和牛磺酸的复合产品的亚铁磁性

摘要

核伽马共振（NGR）用于研究在相对较低的温度范围内（100-180），在1,1'-二乙酰基二茂铁与ε-己内酰胺或2-氨基乙磺酸之间的反应中形成的外部均质磁铁矿样物质的粉末°C）。所示粉末由磁铁矿和含有1，1'-二乙酰基二茂铁和有机含氮组分的二茂铁基体组成。在研究NGR光谱在295–80 K范围内的温度依赖性时，可以确定样品内部以及两个Fe ²⁺ / Fe ³⁺子系统（二茂铁/二茂铁和子晶格B磁铁矿。结果，经典的电子交换延迟和磁铁矿结构的相序机制不起作用，并且在样品中未观察到Verwey跃迁。