Synthesis, Crystal Structure, and Magnetic Properties of a New 2D Twofold Interpenetrated Coordination Polymer [Cu(3,4-pybz)2]n

A new coordination polymer, [Cu(3, 4‐pybz)2]n (1) [3,4‐Hpybz = 3‐pyridin‐4‐yl‐benzoic acid], was synthesized by hydrothermal reaction of CuCl2·2H2O and 3,4‐Hpybz, and characterized by elemental analysis, IR spectroscopy, PXRD, and single‐crystal X‐ray diffraction. The structure determination reveals that 1 exhibits a 2D twofold interpenetrated 4‐connected (4,4) network topology, these 2D layers are further enlarged to form the final 3D supramolecular edifice via aromatic π–π stacking interactions. In addition, the magnetic behavior and thermogravimetric analysis of 1 were also studied.