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Proton-Mediated Electron Configuration Change in High-Spin Iron(II) Porphyrinates

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posted on 02.11.2005, 00:00 authored by Chuanjiang Hu, Bruce C. Noll, Charles E. Schulz, W. Robert Scheidt
The synthesis, molecular structure, and electronic structure characterization of two five-coordinate high-spin imidazolate-ligated iron(II) porphyrinates are reported. Their electronic structure, as deduced from Mössbauer spectra obtained in strong magnetic fields, is distinctly different from that of the analogous imidazole-ligated species. The resulting electronic structure models are consistent with all observed differing features in the two classes.