Bitter, Stefan
[Author];
Schlötter, Moritz
[Author];
Schilling, Markus
[Author];
Krumova, Marina
[Author];
Polarz, Sebastian
[Author];
Winter, Rainer F.
[Author]
Ferro-self-assembly: Magnetic and electrochemical adaptation of a multiresponsive zwitterionic metalloamphiphile showing a shape-hysteresis effect
- [published Version]
You can manage bookmarks using lists, please log in to your user account for this.
Media type:
Text;
E-Article
Title:
Ferro-self-assembly: Magnetic and electrochemical adaptation of a multiresponsive zwitterionic metalloamphiphile showing a shape-hysteresis effect
Contributor:
Bitter, Stefan
[Author];
Schlötter, Moritz
[Author];
Schilling, Markus
[Author];
Krumova, Marina
[Author];
Polarz, Sebastian
[Author];
Winter, Rainer F.
[Author]
Published:
Cambridge : RSC, 2020
Published in:Chemical Science 12 (2021), Nr. 1 ; Chemical Science
Footnote:
Diese Datenquelle enthält auch Bestandsnachweise, die nicht zu einem Volltext führen.
Description:
Metallosurfactants are molecular compounds which combine the unique features of amphiphiles, like their capability of self-organization, with the peculiar properties of metal complexes like magnetism and a rich redox chemistry. Considering the high relevance of surfactants in industry and science, amphiphiles that change their properties on applying an external trigger are highly desirable. A special feature of the surfactant reported here, 1-(Z)-heptenyl-1′-dimethylammonium-methyl-(3-sulfopropyl)ferrocene (6), is that the redox-active ferrocene constituent is in a gemini-position. Oxidation to 6+ induces a drastic change of the surfactant's properties accompanied by the emergence of paramagnetism. The effects of an external magnetic field on vesicles formed by 6+ and the associated dynamics were monitored in situ using a custom-made optical birefringence and dual dynamic light scattering setup. This allowed us to observe the optical anisotropy as well as the anisotropy of the diffusion coefficient and revealed the field-induced formation of oriented string-of-pearls-like aggregates and their delayed disappearance after the field is switched off.