Abstract
A novel iron phosphate templated with ethylenediammonium cation, [H3N(CH2)2NH3]2 Fe4 O(PO4)4ċH2O, has been synthesized hydrothermally and characterized by single-crystal X-ray diffraction, thermo-gravimetric analysis, magnetic susceptibility and Mossbauer spectroscopy. The compound crystallizes in the mono-clinic space group C2 with a= 30.3801(5),b= 10.1204(5),c= 10.0977(5) Å,β = 107.712(1)°, V = 2957.5(4) Å3 and Z = 6. The structure contains 5 and 6-coordinated Fe atoms bridged by μ4-oxygen and PO4 groups to form two types of mixed-valence Fe4P4 cubane-like clusters, which are connected via Fe- O- P bonds to give rise to intersecting channels that house the ethylenediammonium cations and water molecules. Room-temperature Mossbauer data confirm the presence of FeII and FeIII.
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Huang, CY., Wang, SL. & Lii, KH. A Novel Mixed-Valence Tetranuclear Iron-Oxygen Clusters in the Organically Templated Iron Phosphate [H3N(CH2)2NH3]2 Fe4O(PO4)4 ċH2O. Journal of Porous Materials 5, 147–152 (1998). https://doi.org/10.1023/A:1009605723397
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DOI: https://doi.org/10.1023/A:1009605723397