Iron-57, electronic

Iron electronic configurations in proteins studies by Mossbauer spectroscopy. A. J. Bearden and W. R. Dunham, Struct. Bonding (Berlin), 1970, 8, 2-52 (196). 

Figure 4. The calculated spectrum of the complex after a Lorentzian band convolution. Region I is dominated by bridging-sulfur-to-iron CT transitions, while region II is mostly due to organic-sulfur-to-iron electron transitions. Regions I and II are explained in a MO diagram. The vertical lines correspond to the experimental bands observed in the absorption spectrum of the [Fe2 (J. - S2) P o - CqH4S) ) ] complex, from Reference 1.

Based on the attenuation of the iron 2p signal and assuming a mean free path for the iron electrons of 1.5 to 2 nanometers, it is estimated that the carbon overlayer is at least 1.8 to 2.5 nano-... 

Bearden, A. J., Dunham, W. R. Iron Electronic Configuration in Proteins Studies by Mossbauer Spectroscopy. Vol. 8, pp. 1-52. 

In conclusion, it might be said that the method gives useful results for crystals with distinct molecules. It shows that the large QS in the five-coordinated complexes XFe(R2C tc)2 is primarily caused by covalency effects and is almost entirely due to the valence iron electrons. 

The one-center terms represent the contributions of the iron electrons to the... 

Fritz, J., Anderson, R., Fee, J., Palmer, G, Sands, R.H., Tsibris, J.C.M., Gunsalus, I.C., Orme-Johnson, W.H., and Beinert, H. 1971. The iron electron-nuclear double resonance (ENDOR) of two-iron ferredoxins from spinach, parsley, pig adrenal cortex and Pseudomonas putida. Biochimica et Biophysica Acta 253 110-133. 

A. J. Bearden, W. R. Durnham Iron Electronic Configurations in Proteins Studies by Moss-bauer Spectroscopy. - K Wiitkrich Structural Studies of Hemes and Hemoproteins by Nuclear Magnetic Resonance Spectroscopy. -H. A 0. Hill,A. Roder, R. J. P. Williams The Chemical Nature and Reactivity of Cytochrome P-450. - S. Lindskog Cobalt (II) in Metalloenzymes. A Reporter of Structure-Function Relations. 

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