Medium Dell Operation 10o Pieces Food 7. - Mössbauer spectroscopy The reduced form of the Rieske [2Fe-2S1 cluster has one high-spin Fe(II) and one high- spin Fe(III) site. The Mossbauer spectrum of this sample is shown below and the assignment of the four lines to two quadrupole doublets is indicated by brackets. a) Determine the values of the isomer shift and quadrupole splitting parameter for the two species (for example by using a ruler) b) Consult your lecture notes and use the parameters determined in (a) to assign the two quadrupole doublets to the high-spin Fe(lI) and high-spin Fe(lI) sites. -2 o 2 4 mm/s
