Persistent radical anions in the series of peri-arylenes: broadband light absorption until far in the NIR and purely organic magnetism

ABSTRACT: Stable radicals in organic conjugated molecules are of great interest due to their magnetic signals and broad optical absorptions. In this paper, we report on naphthalene, benzoperylene, perylene, terrylene, and quaterrylene carboximides, reduced under controlled conditions, where stable m...

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Detalles Bibliográficos
Autores principales: Langhals, Heinz, Ritter-Faizade, Ulrike, Stadler, Philipp, Havlicek, Marek, Hofer, Alexander, Sariciftci, Niyazi Serdar
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Vienna 2019
Materias:
Original Paper
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6534079/
https://www.ncbi.nlm.nih.gov/pubmed/31178606
http://dx.doi.org/10.1007/s00706-019-02404-8
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author Langhals, Heinz
Ritter-Faizade, Ulrike
Stadler, Philipp
Havlicek, Marek
Hofer, Alexander
Sariciftci, Niyazi Serdar
author_facet Langhals, Heinz
Ritter-Faizade, Ulrike
Stadler, Philipp
Havlicek, Marek
Hofer, Alexander
Sariciftci, Niyazi Serdar
author_sort Langhals, Heinz
collection PubMed
description ABSTRACT: Stable radicals in organic conjugated molecules are of great interest due to their magnetic signals and broad optical absorptions. In this paper, we report on naphthalene, benzoperylene, perylene, terrylene, and quaterrylene carboximides, reduced under controlled conditions, where stable metal-free solid salts of radical anions could be obtained forming darkly colored solutions with line-rich UV/Vis/NIR spectra and exhibiting special magnetic properties. The most bathochromic shift of the absorption maxima extend from 760 until 1700 nm. Persistent paramagnetic properties of the solids were observed and temperature-dependent susceptibilities are measured. GRAPHICAL ABSTRACT: [Image: see text]
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spelling pubmed-65340792019-06-07 Persistent radical anions in the series of peri-arylenes: broadband light absorption until far in the NIR and purely organic magnetism Langhals, Heinz Ritter-Faizade, Ulrike Stadler, Philipp Havlicek, Marek Hofer, Alexander Sariciftci, Niyazi Serdar Monatsh Chem Original Paper ABSTRACT: Stable radicals in organic conjugated molecules are of great interest due to their magnetic signals and broad optical absorptions. In this paper, we report on naphthalene, benzoperylene, perylene, terrylene, and quaterrylene carboximides, reduced under controlled conditions, where stable metal-free solid salts of radical anions could be obtained forming darkly colored solutions with line-rich UV/Vis/NIR spectra and exhibiting special magnetic properties. The most bathochromic shift of the absorption maxima extend from 760 until 1700 nm. Persistent paramagnetic properties of the solids were observed and temperature-dependent susceptibilities are measured. GRAPHICAL ABSTRACT: [Image: see text] Springer Vienna 2019-05-02 2019 /pmc/articles/PMC6534079/ /pubmed/31178606 http://dx.doi.org/10.1007/s00706-019-02404-8 Text en © The Author(s) 2019 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided 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.
spellingShingle Original Paper
Langhals, Heinz
Ritter-Faizade, Ulrike
Stadler, Philipp
Havlicek, Marek
Hofer, Alexander
Sariciftci, Niyazi Serdar
Persistent radical anions in the series of peri-arylenes: broadband light absorption until far in the NIR and purely organic magnetism
title Persistent radical anions in the series of peri-arylenes: broadband light absorption until far in the NIR and purely organic magnetism
title_full Persistent radical anions in the series of peri-arylenes: broadband light absorption until far in the NIR and purely organic magnetism
title_fullStr Persistent radical anions in the series of peri-arylenes: broadband light absorption until far in the NIR and purely organic magnetism
title_full_unstemmed Persistent radical anions in the series of peri-arylenes: broadband light absorption until far in the NIR and purely organic magnetism
title_short Persistent radical anions in the series of peri-arylenes: broadband light absorption until far in the NIR and purely organic magnetism
title_sort persistent radical anions in the series of peri-arylenes: broadband light absorption until far in the nir and purely organic magnetism
topic Original Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6534079/
https://www.ncbi.nlm.nih.gov/pubmed/31178606
http://dx.doi.org/10.1007/s00706-019-02404-8
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