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The electromagnetic wave energy effect(s) in microwave–assisted organic syntheses (MAOS)
Organic reactions driven by microwaves have been subjected for several years to some enigmatic phenomenon referred to as the microwave effect, an effect often mentioned in microwave chemistry but seldom understood. We identify this microwave effect as an electromagnetic wave effect that influences m...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5980088/ https://www.ncbi.nlm.nih.gov/pubmed/29581443 http://dx.doi.org/10.1038/s41598-018-23465-5 |
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author | Horikoshi, Satoshi Watanabe, Tomoki Narita, Atsushi Suzuki, Yumiko Serpone, Nick |
author_facet | Horikoshi, Satoshi Watanabe, Tomoki Narita, Atsushi Suzuki, Yumiko Serpone, Nick |
author_sort | Horikoshi, Satoshi |
collection | PubMed |
description | Organic reactions driven by microwaves have been subjected for several years to some enigmatic phenomenon referred to as the microwave effect, an effect often mentioned in microwave chemistry but seldom understood. We identify this microwave effect as an electromagnetic wave effect that influences many chemical reactions. In this article, we demonstrate its existence using three different types of microwave generators with dissimilar oscillation characteristics. We show that this effect is operative in photocatalyzed TiO(2) reactions; it negatively influences electro-conductive catalyzed reactions, and yet has but a negligible effect on organic syntheses. The relationship between this electromagnetic wave effect and chemical reactions is elucidated from such energetic considerations as the photon energy and the reactions’ activation energies. |
format | Online Article Text |
id | pubmed-5980088 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-59800882018-06-06 The electromagnetic wave energy effect(s) in microwave–assisted organic syntheses (MAOS) Horikoshi, Satoshi Watanabe, Tomoki Narita, Atsushi Suzuki, Yumiko Serpone, Nick Sci Rep Article Organic reactions driven by microwaves have been subjected for several years to some enigmatic phenomenon referred to as the microwave effect, an effect often mentioned in microwave chemistry but seldom understood. We identify this microwave effect as an electromagnetic wave effect that influences many chemical reactions. In this article, we demonstrate its existence using three different types of microwave generators with dissimilar oscillation characteristics. We show that this effect is operative in photocatalyzed TiO(2) reactions; it negatively influences electro-conductive catalyzed reactions, and yet has but a negligible effect on organic syntheses. The relationship between this electromagnetic wave effect and chemical reactions is elucidated from such energetic considerations as the photon energy and the reactions’ activation energies. Nature Publishing Group UK 2018-03-26 /pmc/articles/PMC5980088/ /pubmed/29581443 http://dx.doi.org/10.1038/s41598-018-23465-5 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Horikoshi, Satoshi Watanabe, Tomoki Narita, Atsushi Suzuki, Yumiko Serpone, Nick The electromagnetic wave energy effect(s) in microwave–assisted organic syntheses (MAOS) |
title | The electromagnetic wave energy effect(s) in microwave–assisted organic syntheses (MAOS) |
title_full | The electromagnetic wave energy effect(s) in microwave–assisted organic syntheses (MAOS) |
title_fullStr | The electromagnetic wave energy effect(s) in microwave–assisted organic syntheses (MAOS) |
title_full_unstemmed | The electromagnetic wave energy effect(s) in microwave–assisted organic syntheses (MAOS) |
title_short | The electromagnetic wave energy effect(s) in microwave–assisted organic syntheses (MAOS) |
title_sort | electromagnetic wave energy effect(s) in microwave–assisted organic syntheses (maos) |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5980088/ https://www.ncbi.nlm.nih.gov/pubmed/29581443 http://dx.doi.org/10.1038/s41598-018-23465-5 |
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