Mössbauer spectra of compounds containing iron(II) in strong-field tetragonal environments

摘要: Mossbauer spectra of compounds having the general formulae bis(1, 2-cyclohexanedione dioxime) iron (II) XY and phthalocyanineiron(II)(Z)2, where X, Y, Z represent ligands at axial positions, have been measured 77°K in some cases room temperature. The consist quadrupole-split doublets, from which two parameters obtained : isomer shift δ quadrupole splitting, ΔEQ. These appear to be linearly related each other within both series complexes. It is argued that such a relationship exists only when can considered either pure π-acceptors or π-donors.