A new polymeric copper(II) complex containing pyrazine-2-carboxyamide (pzca): Synthesis and crystal structure of {[Cu(pzca)(CH3CN)3](ClO4)2 · H2O}n

The synthesis and the crystal structure of the new coordination polymer, {[Cu(pzca)(CH3CN)3](ClO4)2 · H2O}n is reported. The compound presents a two-dimensional extended structure as a result of the hydrogen bonding interactions involving the amino functional group of the pzca molecule, the water molecule and the perchlorate anions.