1D and 3D coordination polymers based on the Cu3(?3-OH)(?-pz)3 and Cu(Hpz)3 SBUs connected by the flexible glutarate dianion

[object Object]Different synthetic procedures lead to different coordination polymers (CPs) based either on the trinuclear triangular [Cu3(? 3-OH)(?-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.