Abstract
In the title compound, {[Fe(CHO2)2(C10H8N2)(H2O)]·4H2O}n, the FeII ion is coordinated by two 4,4′-bipyridyl (4,4′-bpy) ligands, three formate ligands and one water molecule. The slightly distorted octahedral FeN2O4 coordination results from the N atoms of two bridging 4,4′-bpy ligands, the O atoms of two bridging HCOO− anions of anti–anti mode, all in trans positions around the metal centre, and the O atoms of one terminal HCOO− anion and of one water molecule. The bridging formate ligands link the metal ions into chains that are further connected via 4,4′-bpy ligands into a framework structure. The three-dimensional structure is stabilized by extensive O—H⋯O hydrogen bonding. The crystals were twinned containing a 0.84:0.16 racemate.
Highlights
In the title compound, {[Fe(CHO2)2(C10H8N2)(H2O)]4H2O}n, the FeII ion is coordinated by two 4,40 -bipyridyl (4,40 -bpy) ligands, three formate ligands and one water molecule
The bridging formate ligands link the metal ions into chains that are further connected via 4,40 -bpy ligands into a framework structure
Symmetry codes: (v) x, y, z+1; (vi) x−1/2, −y+3/2, z+1/2; (vii) x, −y+1, z+1/2; (viii) x, −y+1, z−1/2
Summary
R factor = 0.034; wR factor = 0.084; data-to-parameter ratio = 10.2. In the title compound, {[Fe(CHO2)2(C10H8N2)(H2O)]4H2O}n, the FeII ion is coordinated by two 4,40 -bipyridyl (4,40 -bpy) ligands, three formate ligands and one water molecule. The slightly distorted octahedral FeN2O4 coordination results from the N atoms of two bridging 4,40 -bpy ligands, the O atoms of two bridging HCOO anions of anti–anti mode, all in trans positions around the metal centre, and the O atoms of one terminal HCOO anion and of one water molecule. The bridging formate ligands link the metal ions into chains that are further connected via 4,40 -bpy ligands into a framework structure. The three-dimensional structure is stabilized by extensive O—H O hydrogen bonding. The crystals were twinned containing a 0.84:0.16 racemate. Symmetry codes: (i) x; y; z þ 1; (ii) x 12; y þ 32; z þ 12; (iii) x; y þ 1; z þ 12; (iv) x; y þ 1; z 12
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