Terminal Ligand Influence on the Electronic Structure and Intrinsic Redox Properties of the [Fe4S4]2+ Cubane Clusters
We used photoelectron spectroscopy (PES) to study how the terminal ligands influence the electronic structure and redox properties of the [4Fe-4S] cubane in several series of ligand-substituted analogue complexes: [Fe4S4Cl4-x(CN)x]2-, [Fe4S4Cl4-x(SCN)x]2-, [Fe4S4Cl4-x(OAc)x]2-, [Fe4S4(SC2H5)4-x(OPr)x]2-, and [Fe4S4(SC2H5)4-x(Cl)x]2-(x=0-4). All the ligand-substituted complexes gave similar PES spectra as the parents, suggesting that the mixed-ligand coordination does not perturb the electronic structure of the cubane core significantly.
- Research Organization:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 15020885
- Report Number(s):
- PNNL-SA-41773; 3225; KP1301030; TRN: US200521%%309
- Journal Information:
- Inorganic Chemistry, Vol. 43, Issue 12
- Country of Publication:
- United States
- Language:
- English
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