A mixed-valence copper coordination polymer generated by hydrothermal metal/ligand redox reactionsElectronic supplementary (ESI) available: the effective molar magnetic moment µeff of 1 vs. T. See http://www.rsc.org/suppdata/cc/b2/b203301a/

Abstract
A novel coordination polymer of mixed-valence copper(I,II) with 4,4′-bipyridine and in situ oxidized isophthalate, [Cu2(ipO)(4,4′-bpy)] (ipOH = 2-hydroxyisophthalate), was hydrothermally synthesized and crystallographically characterized to be a laminated structure via weak copper(II)–oxygen interactions.