1D and 3D coordination polymers based on the Cu-3(mu(3)-OH)(mu-pz)(3) and Cu(Hpz)(3) SBUs connected by the flexible glutarate dianion

Different synthetic procedures lead to different coordination polymers (CPs) based either on the trinuclear triangular [Cu3(μ3-OH)(μ-pz)3]2+ or on the mononuclear [Cu(Hpz)3]2+ (Hpz = pyrazole) secondary building units (SBUs), bridged by the flexible glutarate (Glu) dianion. The mononuclear complex [Cu(HGlu)2(Hpz)4] was also obtained as byproduct. One of the CPs based on the trinuclear SBU displays a relevant porosity due to three intersecting channels, accounting for about 40% of the solvent accessible void space.