Publisher's Version: http://dx.doi.org/10.1107/S1600536810003284
In the title compound, [Zn(C6H3FNO2)2(H2O)4]·2H2O, the ZnII atom is octahedrally coordinated in a ZnO4N2 environment by two 3-fluoropyridine-4-carboxylate (3-fpy4-cbx) ligands and four water molecules. The [Zn(3-fpy4-cbx)2(H2O)4] molecules form a three-dimensional network through strong O-HO and weak O-HF hydrogen bonds between 3-fpy4-cbx and water molecules. The crystal used for data collection was a twin, with the twin law corresponding to a 180° rotation about the real-space  axis. The major twin fraction refined to 0.795 (1).
Jonetha Fleming, Jennifer Kelley, LeRoy Peterson Jr., Mark D. Smith, and Hans Conrad zur Loye. "Tetraaquabis(3-fluoropyridine-4-carboxylato-κN)zinc(II) dihydrate" Acta Crystallographica Section E E66.3 (2010): m244-sup-7.
Available at: http://works.bepress.com/hansconrad_zurloye/19