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The polycondensed resin from acetylferrocene and furfural was heated up to 400°C in vacuum. The chemical form of iron, which vas liberated by destruction of the ferrocene skeleton, was examined by IR, ESR, Mössbauer spectroscopy and electron microscopy and from magnetic property. The results indicate iron in the carbon network may be in isolated atomic form.
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Yajima et al. (1972) studied this question.
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