Unprecedented tubular channels assemblies afforded by alkyl-substituted oxamide oxime metal complexes

Abstract

The synthesis of an oxamide oxime substituted with hexyl chains, together with its nickel(II) (1) and palladium(II) (2) complexes, is described. Both complexes crystallize in the hexagonal space group R (No 148). In the crystal the complex molecules are linked by hydrogen bonds involving the oximic oxygen atoms and the amino nitrogen atoms to build infinite tubular channels partly filled by the hexyl chains and self-organized in two-dimensional hexagonal arrays.