Radio-frequency superradiance induced by the rheological explosion of polymer composites containing paramagnetic cobalt complexes |
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| Authors: | A I Aleksandrov I A Aleksandrov S B Zezin E N Degtyarev A A Dubinskiy S S Abramchuk A I Prokof’ev |
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| Institution: | 1.Enikolopov Institute of Synthetic Polymer Materials,Russian Academy of Sciences,Moscow,Russia;2.Moscow State University,Moscow,Russia;3.Semenov Institute of Chemical Physics,Russian Academy of Sciences,Moscow,Russia;4.Nesmeyanov Institute of Organoelement Compounds,Russian Academy of Sciences,Moscow,Russia |
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| Abstract: | Superradiance induced by the rheological explosion of composites based on polystyrene, cobalt acetylacetonate, and/or 3,5-di-tert-butylcatechol has been investigated. The superradiance intensity is determined by solid-phase chemical reactions induced by the rheological explosion. EPR, X-ray diffraction, and electron microscopic characterization of stable products resulting from the rheological explosion in the polymer matrix has demonstrated that the superradiance intensity is related to the electronic properties and structure of two-spin intermediates, namely, radical pairs and organoelement biradicals. |
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