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We paired both 125Te and 57Fe NRVS to measure and identify key vibrational modes in iron chalcogenide dimers to understand their contributions to mixed-valent spin states.
doi.org/10.1038/s414...
doi.org
125Te and 57Fe nuclear resonance vibrational spectroscopic characterization of intermediate spin state mixed-valent dimers - Nature Communications
While most biological and biomimetic mixed-valent [2Fe-2S]+ clusters exhibit a S = 1/2 ground spin state, substitutions with Se and Te significantly perturb the electronic structure and yield clear S ...
