A coordination polymer consisting of two different one-dimensional copper(II) chains

The title compound, catena-poly[[[di­aqua­(methanol-κO)cop­per(II)]-μ-N-(4-methyl­pyrimidin-2-yl-κN1)pyrazin-2-amine-κ2N1:N4] [[aqua­(aqua/methanol-κO)(perchlorato-κO)cop­per(II)]-μ-N-(4-methyl­pyrimidin-2-yl-κN1)pyrazin-2-amine-κ2N1:N4] tris­(perchlorate) methanol monosolvate 1.419-hy­drate], {[Cu(C9H9N5)(CH3OH)(H2O)2][Cu(C9H9N5)(ClO4)(CH3OH)0.581(H2O)1.419](ClO4)3·CH3OH·1.419H2O}n, is a one-dimensional straight-chain polymer of N-(4-methyl­py­rimidin-2-yl)pyrazin-2-amine (L) with Cu(ClO4)2. The complex con­sists of two crystallographically independent one-dimensional chains in which the CuII atoms exhibit two different octa­hedral coordination geometries. The L ligand coordinates to two CuII centres in a tridentate manner, with the pyrazine ring acting as a bridge linking the CuII coordination units and building an infinite one-dimensional chain. Extensive hydrogen bonding among perchlorate anions, water mol­ecules and L ligands results in three-dimensional networks.