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Ferrocene-Containing Sterically Hindered Phosphonium Salts

The synthesis and physical properties of the series of the ferrocenyl-containing sterically hindered phosphonium salts based on di(tert-butyl)ferrocenylphosphine is reported. Analysis of voltamogramms of the obtained compounds revealed some correlations between their structures and electrochemical p...

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Autores principales: Ermolaev, Vadim, Gerasimova, Tatiana, Kadyrgulova, Liliya, Shekurov, Ruslan, Dolengovski, Egor, Kononov, Aleksandr, Miluykov, Vasily, Sinyashin, Oleg, Katsyuba, Sergei, Budnikova, Yulia, Khrizanforov, Mikhail
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6278326/
https://www.ncbi.nlm.nih.gov/pubmed/30366477
http://dx.doi.org/10.3390/molecules23112773
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author Ermolaev, Vadim
Gerasimova, Tatiana
Kadyrgulova, Liliya
Shekurov, Ruslan
Dolengovski, Egor
Kononov, Aleksandr
Miluykov, Vasily
Sinyashin, Oleg
Katsyuba, Sergei
Budnikova, Yulia
Khrizanforov, Mikhail
author_facet Ermolaev, Vadim
Gerasimova, Tatiana
Kadyrgulova, Liliya
Shekurov, Ruslan
Dolengovski, Egor
Kononov, Aleksandr
Miluykov, Vasily
Sinyashin, Oleg
Katsyuba, Sergei
Budnikova, Yulia
Khrizanforov, Mikhail
author_sort Ermolaev, Vadim
collection PubMed
description The synthesis and physical properties of the series of the ferrocenyl-containing sterically hindered phosphonium salts based on di(tert-butyl)ferrocenylphosphine is reported. Analysis of voltamogramms of the obtained compounds revealed some correlations between their structures and electrochemical properties. The elongation of the alkyl chain at the P atom as well as replacement of the Br(−) anion by [BF(4)](−) shifts the ferrocene/ferrocenium transition of the resulting salts into the positive region. DFT results shows that in the former case, the Br(−) anion destabilizes the corresponding ion pair, making its oxidation easier due to increased highest occupied molecular orbital (HOMO) energy. Increased HOMO energy for ion pairs with the Br(−) ion compared to BF(4)(−) are caused by contribution of bromide atomic orbitals to the HOMO. The observed correlations can be used for fine-tuning the properties of the salts making them attractive for applications in multicomponent batteries and capacitors.
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spelling pubmed-62783262018-12-13 Ferrocene-Containing Sterically Hindered Phosphonium Salts Ermolaev, Vadim Gerasimova, Tatiana Kadyrgulova, Liliya Shekurov, Ruslan Dolengovski, Egor Kononov, Aleksandr Miluykov, Vasily Sinyashin, Oleg Katsyuba, Sergei Budnikova, Yulia Khrizanforov, Mikhail Molecules Article The synthesis and physical properties of the series of the ferrocenyl-containing sterically hindered phosphonium salts based on di(tert-butyl)ferrocenylphosphine is reported. Analysis of voltamogramms of the obtained compounds revealed some correlations between their structures and electrochemical properties. The elongation of the alkyl chain at the P atom as well as replacement of the Br(−) anion by [BF(4)](−) shifts the ferrocene/ferrocenium transition of the resulting salts into the positive region. DFT results shows that in the former case, the Br(−) anion destabilizes the corresponding ion pair, making its oxidation easier due to increased highest occupied molecular orbital (HOMO) energy. Increased HOMO energy for ion pairs with the Br(−) ion compared to BF(4)(−) are caused by contribution of bromide atomic orbitals to the HOMO. The observed correlations can be used for fine-tuning the properties of the salts making them attractive for applications in multicomponent batteries and capacitors. MDPI 2018-10-25 /pmc/articles/PMC6278326/ /pubmed/30366477 http://dx.doi.org/10.3390/molecules23112773 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ermolaev, Vadim
Gerasimova, Tatiana
Kadyrgulova, Liliya
Shekurov, Ruslan
Dolengovski, Egor
Kononov, Aleksandr
Miluykov, Vasily
Sinyashin, Oleg
Katsyuba, Sergei
Budnikova, Yulia
Khrizanforov, Mikhail
Ferrocene-Containing Sterically Hindered Phosphonium Salts
title Ferrocene-Containing Sterically Hindered Phosphonium Salts
title_full Ferrocene-Containing Sterically Hindered Phosphonium Salts
title_fullStr Ferrocene-Containing Sterically Hindered Phosphonium Salts
title_full_unstemmed Ferrocene-Containing Sterically Hindered Phosphonium Salts
title_short Ferrocene-Containing Sterically Hindered Phosphonium Salts
title_sort ferrocene-containing sterically hindered phosphonium salts
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6278326/
https://www.ncbi.nlm.nih.gov/pubmed/30366477
http://dx.doi.org/10.3390/molecules23112773
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