The Moessbauer Spectrum of an Intermediate Spin (S = 1) Four-co-ordinated (Protoporphyrinato IX)Iron(II) Complex in a Frozen Aqueous Solution of Cetyltrimethylammonium Bromide

Article abstract of DOI:10.1039/c39890001199

The Moessbauer spectrum of the four-co-ordinated haem, (protoporphyrinato IX)iron(II) monodispersed in an aqueous detergent solution of 5percent cetyltrimethylammonium bromide (CTAB), is that of a typical intermediate spin (S = 1) system -1 and the quadrupole splitting (ΔE_Q) is 1.44(2) mm s^-1>; the results are comparable to those found in synthetic (porphyrinato)iron(II) analogues, the ΔE_Q values follow the ? donating ability (basicity) of the porphyrin ligands and the two lines of the quadrupole doublet are of unequal intensity at 78 K.

Full text of DOI:10.1039/c39890001199

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