Modeling nuclear resonance vibrational spectroscopic data of binuclear non-heme iron enzymes using density functional
Kiyoung Park1, Edward I Solomon1
1Department of Chemistry, Stanford University, 333 Campus Drive, Stanford, CA 94305, USA.
Abstract:
Nuclear resonance vibrational spectroscopy (NRVS) is a powerful technique that can provide geometric structural information on key reaction intermediates of Fe-containing systems when utilized in combination with density functional theory (DFT). However, in the case of binuclear non-heme iron enzymes, DFT-predicted NRVS spectra have been found to be sensitive to truncation method used to model the active sites of the enzymes. Therefore, in this study various-level truncation schemes have been tested to predict the NRVS spectrum of a binuclear non-heme iron enzyme, and a reasonably sized DFT model that is suitable for employing the NRVS/DFT combined methodology to characterize binuclear non-heme iron enzymes has been developed.
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