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Adaptive Mo-Fe-S Clusters: Consistent Redox Behavior Versus Reversible Structural Transformations.

Jia Wei1, Juan He1, Gan Xu1

  • 1State Key Laboratory of Microbial Technology, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University (NNU), Nanjing, Jiangsu, 210023, China.

Angewandte Chemie (International Ed. in English)
|April 18, 2025
PubMed
Summary
This summary is machine-generated.

Iron-sulfur clusters adapt to electrochemical demands via redox-induced structural changes. Synthesized Mo-Fe-S clusters show stable redox behavior, revealing insights into electron transfer mechanisms.

Keywords:
Adaptive structural transformationMo‐Fe‐S clustersRedox behavior

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Area of Science:

  • Bioinorganic Chemistry
  • Electrochemistry
  • Biochemistry

Background:

  • Iron-sulfur (Fe-S) clusters are vital for biological processes.
  • Understanding redox-induced structural transformations in Fe-S clusters for electron transport is crucial but ambiguous.

Purpose of the Study:

  • To investigate how Fe-S clusters adapt to electrochemical demands.
  • To explore redox-induced structural transformations in Mo-Fe-S clusters.

Main Methods:

  • Synthesis of three Mo-Fe-S clusters with [Mo2Fe2] metal centers.
  • Cyclic voltammetry (CV) analysis to study redox behavior.
  • Investigation of ligand exchange and solvent effects on redox activity.

Main Results:

  • Synthesized Mo-Fe-S clusters exhibited similar CV curves despite structural differences.
  • Chloride ligand in one cluster was replaced by solvent, yielding similar redox behavior to chloride-free clusters.
  • Redox events correlated with electrochemical transformations between chloride-free clusters.

Conclusions:

  • Fe-S clusters maintain stable redox behavior through structural transformations.
  • These transformations can facilitate electron transfer in biological systems.
  • Provides insight into the adaptability of Fe-S clusters to electrochemical environments.