Mössbauer studies of anion-substituted iron chlorophylls |
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| Authors: | H Hori K Kadono H Inoue H Shirai E Fluck |
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| Institution: | (1) Department of Applied Chemistry, Keio University, Yokohama 223, Japan;(2) Gmelin-Institut der Max-Planck-Gesellschaft, Varrentrappstrasse 40/42, D-6000 Frankfurt am Main 90, FRG |
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| Abstract: | The electronic structure of anion-substituted iron chlorophyll a Fe(Chl-a)X] and b Fe(Chl-b)X] (X=Cl?, NCS?, Br?, I?, CH3COO?) has been characterized by Mössbauer spectroscopy. The central iron ion in these complexes is in a ferric high-spin state. The π-donation from the anion plays an important role in the bonding between the iron ion and the anion. The quadrupole splitting reflects the structural difference between iron chlorophylls and iron porphyrins. |
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