A novel 1-D coordination Cu(II) polymer with alternating μ1,3-squarato and binucleating polypyridylamine bridges

The 1-D coordination polymer {[Cu2(L)(μ1,3-C4O4)(ClO4)2]·1.33 H2O}n (L = 1,3-bis[bis(2-pyridylmethyl)aminomethyl]benzene was synthesized and structurally characterized. The structure consists of L bound to two Cu(II) centers and a bridging squarato in a μ-O1,O3-bis(monodentate) fashion.