Abstract
AbstractA first squarato‐fluoro complex of iron(III) could be prepared and characterised by single‐crystal X‐ray diffraction as (imidH)2[Fe2sq2F4(H2O)2]·2H2O (imid = imidazole, sq = squarate(2‐) anion). Space group P$\bar{1}$, Z = 1, a = 8.2174(8), b = 8.4306(9), c = 8.7860(9) Å, α = 63.864(9)°, β = 78.020(10)°, γ = 79.905(11)°, R1 = 0.0264. The structure is built by dimeric [Fe2sq2F4(H2O)2]2– anions where the iron atoms are bridged by two fluoride ions and two squarate anions acting as bidentate ligands. Two additional fluoride ions and two aqua ligands are in trans‐ terminal positions. These anions are implemented in a hydrogen bond network including the imidazolium cations and the free water molecules.
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