Abstract The synthesis and characterisation of copper(II) complexes of Schiff base ligands derived from 2-(2-pyridylmethyl)-1,3-propanediamine and substituted salicylaldehydes are reported together with the crystal structure of CuL2 · MeOH in which the ligand L2 is derived from 5-bromosalicylaldehyde is also reported. The pendant arm does not engage in inter- or intramolecular binding and inspection of the packing diagram shows that the molecules coexist as discrete van der Waals dimers.

Copper(II) complexes with Schiff base ligands derived from 2-(2-pyridylmethyl)-1,3-propanediamine and substituted salicylaldehydes coexist as discrete van der Waals dimers, with no inter- or intramolecular binding.

Copper(II) complexes of Schiff base ligands derived from 2-(2-pyridylmethyl)-1,3-propanediamine

Key Takeaway: Copper(II) complexes with Schiff base ligands derived from 2-(2-pyridylmethyl)-1,3-propanediamine and substituted salicylaldehydes coexist as discrete van der Waals dimers, with no inter- or intramolecular binding.