Structures and Spectral Properties of the Redox-Active Metal Sites

Structures and spectral Properties of the Redox-active Metal Sites 

Heme prosthetic groups have strong absorption in visible-Soret spectral regions. This heme absorption is extremely sensitive to the stmcture of porphyrin as well as to the redox and ligand binding states of the iron. Thus, hemes a and as must exhibit differences in their absorption spectra even if their respeetive iron atoms are in the same oxidation state, since the number of ligands bound to heme a is different from the number of ligands bound to heme as. Careful measurements of the absorption spectra and the 

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