Chemistry Letters, Vol.32, No.10, 944-945, 2003
New copper(II) complexes connected by NH center dot center dot center dot O=C and NH center dot center dot center dot S=C intermolecular hydrogen bonds
Two new copper(II) complexes with imidazole-4-carboxylate and imidazole-4-dithiocarboxylate have been synthesized. The monomeric units are connected by (NHO)-O-...=C and (NHS)-S-...=C intermolecular hydrogen bonds, respectively, yielding one-dimensional chains that stack with unusually short pi-pi distances.