A new mixed-valence copper(I,II) coordination polymer with 2-D interpenetrating framework based on paddle-wheel dicopper units

A new mixed-valence copper(I,II) coordination complex with [Cu2O8] paddle-wheel dicopper units, [(CuCuI)-Cu-II(ip)(ipH)(4,4'-bipy)(3/2)](n)(ipH(2) = isoplithalatic acid; 4,4'-bipy = 4,4'-bipyridine) (1), has been hydrothermally synthesized and characterized by single-crystal X-ray diffraction, IR, XPS, EPR and TGA. It exhibits a 2-D interpenetrating grid framework, in which five-coordinated Cull and three-coordinated Cut environments are established. (C) 2004 Elsevier B.V. All rights reserved.