Crystalline structure of a new strontium-lasalocid complex: Aqua bis-(lasalocid)-strontium(II) containing nine-coordinate Sr

The title complex, [Sr(C68H106O16)(H2O)], forms a pseudo-centrosymmetric monomer complex, in which one aquo (or water) ligand bridges three O centres of the first lasalocid anionic ligand (Lasa 2) and in which this ligand is tridentate and bonded to just one Sr atom, and the other lasalocid ligand (Lasa 1) is pentadentate and bridges the Sr centre within the monomer. The monomeric unit is stabilized by intramolecular C-H center dot center dot center dot O and O-H center dot center dot center dot O type-hydrogen bonding interactions