Electron Transfer in the Cs⊂{Mn4 Fe4 } Cubic Switch: A Soluble Molecular Model of the MnFe Prussian-Blue Analogues.
Juan-Ramón JiménezJana GlatzAmina BenchohraGeoffrey GontardLise-Marie ChamoreauJean-François MeunierAzzedine BousseksouRodrigue LescouëzecPublished in: Angewandte Chemie (International ed. in English) (2020)
A mixed-valence {MnII 3 MnIII FeII 2 FeIII 2 } cyanide-bridged molecular cube hosting a caesium cation, Cs⊂{Mn4 Fe4 }, was synthesized and structurally characterized by X-ray diffraction. Cyclic-voltammetry measurements show that its electronic state can be switched between five different redox states, which results in a remarkable electrochromic effect. Magnetic measurements on fresh samples point to the occurrence of a spin-state change near room temperature, which could be ascribed to a metal-to-metal electron transfer converting the {FeII -CN-MnIII } pair into a {FeIII -CN-MnII } pair. This feature was only previously observed in the polymeric MnFe Prussian-blue analogues (PBAs). Moreover, this novel switchable molecule proved to be soluble and stable in organic solvents, paving the way for its integration into advanced materials.
Keyphrases
- electron transfer
- room temperature
- ionic liquid
- lymph node metastasis
- molecular docking
- metal organic framework
- high resolution
- risk assessment
- drug delivery
- machine learning
- single molecule
- deep learning
- molecularly imprinted
- light emitting
- structure activity relationship
- drug release
- magnetic resonance
- transition metal
- visible light
- tandem mass spectrometry