Crystal structure of Li(H2O)3[GaEdta]

The ethylenediaminetetraacetate complex Li(H2O)(3)[Ga(Edta)] was synthesized and its crystal structure composed of octahedral (Ga(Edta)(-) anions connected to the Li(H2O) (3) (+) ion through the oxygen atom was studied. Five of the six hydrogen atoms of water molecules are involved in weak hydrogen bonds with the oxygen atoms of four Ga(Edta)(-) complexes, the complex anion is hydrogen-bonded to five water molecules. In addition, shortened contacts C(221)-H(22A)aEuro broken vertical bar O(112) between the Ga(Edta)(-) anions were found. As a result, the molecular packing in the crystal is determined by the three-dimensional lace of hydrogen bonds. The results are compared with published data for the lithium salts of Bi(III), Sb(III), Fe(III), Ni(II), and Hg(II) ethylenediaminetetraacetates.