Iron L-Edge X-ray Absorption Spectroscopy of Myoglobin Complexes and Photolysis Products

摘要

We demonstrate the first application of L-edge X-ray absorption spectroscopy (XAS) to the electronic characterization of biological photolysis products. The experimental L-edge XAS spectra of deoxymyoglobin(deoxy Mb), oxymyoglobin (MbO_2), carbonmonoxymyoglobin (MbCO), and the low-temperature photoproducts (Mb~*CO and Mb~*O_2) are presented and compared to simulated spectra using a ligand field multiplet calculation.