Influence of metal core of mixed‐metal carboxylates in preparation of spinel: ZnFe2O(O2CCF3)6 as a single‐source precursor for preparation of ZnFe2O4

The mixed‐metal and mixed‐valance carboxylates of MFe₂O(O₂CCF₃)₆(C₄H₈O)₂(H₂O) (M = Zn, Mn, Cu) and MFe₂O(O₂CCCl₃)₆(C₄H₈O)₂(H₂O) (M = Zn, Fe) were utilized as potential precursors for the preparation of spinel. In the pyrolysis of ZnFe₂O(O₂CCF₃)₆(C₄H₈O)₂(H₂O) in air at 400 °C pure ZnFe₂O₄ is formed, in contrast to pyrolysis of the trichloro derivative, which resulted in the formation of ZnO and Fe₂O₃. In the pyrolysis of MnFe₂O(O₂CCF₃)₆(C₄H₈O)₂(H₂O) in nitrogen, MnFe₂O₄ was the main phase and single oxides were the minor phases. Copyright © 2005 John Wiley & Sons, Ltd.