Acta Crystallographica Section C

Crystal Structure Communications

Volume 68, Part 9 (September 2012)


metal-organic compounds



sf3175 scheme

Acta Cryst. (2012). C68, m259-m264    [ doi:10.1107/S0108270112034567 ]

Tris(1,10-phenanthroline-[kappa]2N,N')iron(II) bis­(2,4,5-tricarb­oxy­benzoate) monohydrate and tris­(2,2'-bipyridine-[kappa]2N,N')iron(II) 2,5-dicarb­oxy­benzene-1,4-dicarboxyl­ate-benzene-1,2,4,5-tetra­carb­oxy­lic acid-water (1/1/2)

K.-L. Zhong

Abstract: The title compounds, tris­(1,10-phenanthroline-[kappa]2N,N')iron(II) bis­(2,4,5-tricarb­oxy­benzoate) monohydrate, [Fe(C12H8N2)3](C10H5O8)2·H2O, (I), and tris­(2,2'-bipyridine-[kappa]2N,N')iron(II) 2,5-dicarb­oxy­benzene-1,4-dicarboxyl­ate-benzene-1,2,4,5-tetra­carb­oxy­lic acid-water (1/1/2), [Fe(C10H8N2)3](C10H4O8)·C10H6O8·2H2O, (II), were obtained during an attempt to synthesize a mixed-ligand complex of FeII with an N-con­taining ligand and benzene-1,2,4,5-tetra­carb­oxy­lic acid via a solvothermal reaction. In both mononuclear complexes, each FeII metal ion is six-coordinated in a distorted octa­hedral manner by six N atoms from three chelating 1,10-phenanthroline or 2,2'-bipyridine ligands. In compound (I), the FeII atom lies on a twofold axis in the space group C2/c, whereas (II) crystallizes in the space group P21/n. In both compounds, the uncoordinated carboxyl­ate anions and water mol­ecules are linked by typical O-H...O hydrogen bonds, generating extensive three-dimensional hydrogen-bond networks which surround the cations.

Formula: [Fe(C12H8N2)3](C10H5O8)2·H2O and [Fe(C10H8N2)3](C10H4O8)·C10H6O8·2H2O


hkldisplay filedownload file

Structure factor file (CIF format) (205.4 kbytes)
[ doi:10.1107/S0108270112034567/sf3175Isup2.hkl ]
Contains datablock I


hkldisplay filedownload file

Structure factor file (CIF format) (395.5 kbytes)
[ doi:10.1107/S0108270112034567/sf3175IIsup3.hkl ]
Contains datablock II


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