The Partner Does Matter: The Structure of Heteroaggregates of Acridine Orange in Water
Self-assembly of organic molecules in aqueous solutions is governed by a delicate entropy/enthalpy balance. Even small changes in their intermolecular interactions can cause critical changes in the structure of the aggregates and their spectral properties. The experimental results reported here demo...
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doaj-0fbe642e2fe64316b74518be432e49d32020-11-24T22:12:41ZengMDPI AGMolecules1420-30492019-08-012415281610.3390/molecules24152816molecules24152816The Partner Does Matter: The Structure of Heteroaggregates of Acridine Orange in WaterIlya G. Shenderovich0Institute of Organic Chemistry, University of Regensburg, Universitaetstrasse 31, 93053 Regensburg, GermanySelf-assembly of organic molecules in aqueous solutions is governed by a delicate entropy/enthalpy balance. Even small changes in their intermolecular interactions can cause critical changes in the structure of the aggregates and their spectral properties. The experimental results reported here demonstrate that protonated cations of acridine orange, acridine, and acridin-9-amine form stable J-heteroaggregates when in water. The structures of these aggregates are justified by the homonuclear <sup>1</sup>H cross-relaxation nuclear magnetic resonance (NMR). The absorption and fluorescence of these aggregates deviate characteristically from the known H-homoaggregates of the protonated cations of acridine orange. The latter makes acridine orange a handy optical sensor for soft matter studies.https://www.mdpi.com/1420-3049/24/15/2816NMR spectroscopyself-assemblynitrogen heterocyclesfluorescent probes |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ilya G. Shenderovich |
spellingShingle |
Ilya G. Shenderovich The Partner Does Matter: The Structure of Heteroaggregates of Acridine Orange in Water Molecules NMR spectroscopy self-assembly nitrogen heterocycles fluorescent probes |
author_facet |
Ilya G. Shenderovich |
author_sort |
Ilya G. Shenderovich |
title |
The Partner Does Matter: The Structure of Heteroaggregates of Acridine Orange in Water |
title_short |
The Partner Does Matter: The Structure of Heteroaggregates of Acridine Orange in Water |
title_full |
The Partner Does Matter: The Structure of Heteroaggregates of Acridine Orange in Water |
title_fullStr |
The Partner Does Matter: The Structure of Heteroaggregates of Acridine Orange in Water |
title_full_unstemmed |
The Partner Does Matter: The Structure of Heteroaggregates of Acridine Orange in Water |
title_sort |
partner does matter: the structure of heteroaggregates of acridine orange in water |
publisher |
MDPI AG |
series |
Molecules |
issn |
1420-3049 |
publishDate |
2019-08-01 |
description |
Self-assembly of organic molecules in aqueous solutions is governed by a delicate entropy/enthalpy balance. Even small changes in their intermolecular interactions can cause critical changes in the structure of the aggregates and their spectral properties. The experimental results reported here demonstrate that protonated cations of acridine orange, acridine, and acridin-9-amine form stable J-heteroaggregates when in water. The structures of these aggregates are justified by the homonuclear <sup>1</sup>H cross-relaxation nuclear magnetic resonance (NMR). The absorption and fluorescence of these aggregates deviate characteristically from the known H-homoaggregates of the protonated cations of acridine orange. The latter makes acridine orange a handy optical sensor for soft matter studies. |
topic |
NMR spectroscopy self-assembly nitrogen heterocycles fluorescent probes |
url |
https://www.mdpi.com/1420-3049/24/15/2816 |
work_keys_str_mv |
AT ilyagshenderovich thepartnerdoesmatterthestructureofheteroaggregatesofacridineorangeinwater AT ilyagshenderovich partnerdoesmatterthestructureofheteroaggregatesofacridineorangeinwater |
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