ORTEP diagram L3•H2O•DMSO (II) with 30% thermal ellipsoids featuring the hydrogen bonding interactions between L3 and solvent molecules H2O and DMSO H atoms involved in H-bonds are shown for clarity. The O(5A)⋯N(1A), O(5A)⋯N(2A), O(5A)⋯N(3A), O(5A)⋯O(3B) and O(1SA)⋯N(4A), O(1SA)⋯N(5A) distances are 2.871(5), 3.039(5), 2.828(5),2.774(5) and 2.950(4), 2.795(5) Å, respectively.