Generation of Linear Coordination Polymers of catena-[Diaqua-(μ-pyrazine-2,6-dicarboxylato-N,O,O‘-μ-N‘)copper(II) via in Situ Hydro(solvo)thermal Decarboxylation of Pyrazine-2,3,5,6-tetracarboxylic Acid

Reaction of pyrazine-2,3,5,6-tetracarboxylic acid with Cu(II) under hydro(solvo)thermal conditions causes in situ decarboxylation of two carboxyl groups to form pyrazine-2,6-dicarboxylic acid. Coordination of Cu(II) by this ligand generates linear coordination polymers of catena-[diaqua-(μ-pyrazine-2,6-dicarboxylato-N,O,O‘-μ-N‘)copper(II).