期刊名称：Proceedings of the National Academy of Sciences
印刷版ISSN：0027-8424
电子版ISSN：1091-6490
出版年度：1973
卷号：70
期号：9
页码：2582-2584
DOI：10.1073/pnas.70.9.2582
语种：English
出版社：The National Academy of Sciences of the United States of America
摘要：Excitation of oxyhemerythrin with radiation within the envelope of its strong oxygen [->] iron chargetransfer band generates two Raman frequencies, at 844 cm-1 and 500 cm-1. These are assigned to O-O and Fe-O stretching modes. Confirmation of these assignments is provided by the observed shifts in frequency when 16O2 is substituted by 18O2 as ligand. Comparison of the position of the 844-cm-1 band with band positions of small molecules of known oxidation state clearly establishes that the bound oxygen is in an O22-, peroxide-type, electronic state.
