1293-65-8Relevant articles and documents
Ferro-self-assembly: Magnetic and electrochemical adaptation of a multiresponsive zwitterionic metalloamphiphile showing a shape-hysteresis effect
Bitter, Stefan,Schl?tter, Moritz,Schilling, Markus,Krumova, Marina,Polarz, Sebastian,Winter, Rainer F.
, p. 270 - 281 (2021)
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.
Synthesis and (spectro)electrochemistry of 1′,1′′′-disubstituted biferrocenes
Gottwald, Dominique,Korb, Marcus,Lang, Heinrich,Mahrholdt, Julia,Schreiter, Katja,Spange, Stefan,Speck, Matth?us,Yuan, Qing
, (2020)
A series of 1′,1′′′-disubstituted biferrocenes was synthesized to study the influence of electron-withdrawing and electron-donating groups on the electronic interaction within the biferrocenyl unit. Therefore, biferrocenes of type R-bfc-R (bfc = 1:1″-bife
Scalable Synthesis of Functionalized Ferrocenyl Azides and Amines Enabled by Flow Chemistry
Boeser, Lisa,Christmann, Mathias,Hartmayer, Bence,Heretsch, Philipp,Kleoff, Merlin,Sarkar, Biprajit,Schwan, Johannes
supporting information, (2020/02/04)
A scalable access to functionalized ferrocenyl azides has been realized in flow. By halogen-lithium exchange of ferrocenyl halides and trapping with tosyl azide, a variety of functionalized ferrocenyl azides were obtained in high yields. To allow a scalable preparation of these potentially explosive compounds, a flow protocol was developed accelerating the reaction time to minutes and circumventing accumulation of potentially hazardous intermediates. The corresponding ferrocenyl amines were then prepared by a reliable reduction process.
