Two mixed-valence copper(i,ii) imidazolate coordination polymers: metal-valence tuning approach for new topological structuresElectronic supplementary information (ESI) available: Synthesis and additional plots for 1 and 2. See http://www.rsc.org/suppdata/cc/b4/b401691b/

A new metal-valence tuning synthetic approach has been utilized to generate two new mixed-valence Cu(I,II) coordination polymers Cu(2)(im)(3) and Cu(3)(im)(4)(Him = imidazole), which are an unprecedented uninodal 4-connected 4.8(5) topological net and a 4-connected (4,4) net, respectively.