Mossbauer Spectra of Iron(III) Iodate and Periodates

The Mossbauer spectra of iron(III) iodate and periodate are studied at room temperature. The spectrum of iron(III) iodate shows a single line of absorption, while that of iron(III) periodate exhibits quadrupole splitting. The results are discussed in terms of ionic character and covalency of the chemical bond between iron(III) and oxy-anfons