Synthesis and Crystal Structure Characterization of Zinc (II) Tetronic Acid Complexes.

The synthesis and characterization of two new tetronic acid zinc (II) complexes of the empirical formulae [Zn(L-H)(2)(H(2)O)(2)] (1) and [Zn(L-H)(2)(H(2)O)(MeOH)]H(2)O (2) found within the same crystal are reported. The zinc ions bind through alkoxide and carbonyl groups of the ligand 3-methoxycarbonyl-5-phenyl tetronic acid (LH) as indicated by (1)H NMR and X-ray crystallographic studies. These complexes promote intra- and intermolecular interactions, such as hydrogen bonding and π stacking, giving place to the formation of molecular aggregates.