An unusual Cu(II) polymeric compound with tridentate dehydronated and bidentate neutral ligand bis(pyrimidin-2-yl)amine (=Hdipm) and uncoordinated Hdipm in a complicated H-bonding system. Synthesis, characterization and X-ray structure of {[Cu(dipm)(Hdipm

The 2D system of Hydrogen bonds consists of Watson-Crick-type intermolecular double H-bonds between pairs of dipm molecules and H-bonds between the triflate anion, the ethanol and water molecules. The ligand-field and EPR spectra are uneventful and agree with the found coordination geometry. Cu(II) hyperfine splitting remains unresolved.