AbstractThe Mössbauer absorption and emission spectra of FeL2PY2Fe‐doped (57Fe2M) (L)2Py2and57CoL2Py2(where, L=acac, dbm and hfa, M=Co or Ni) are reported. It was found that the Mössbauer parameters, especially, quadrupole splittings of57Fe in57CoL2Py2exception of57Co(dbm)2Py2are quite similar to those of the corresponding (57Fe, Co)L2Py2. In addition, the Mössbauer spectra shown that the chemical states of57Fe in the hosts of Fe(acac)2PY2, Co(acac)2Py2and Ni(acac)2Py2were not ident