A new copper(Ⅱ) coordination polymer, [Cu(p-BDOA)(2,2'-bipy)·H2O]n (p-BDOA2-=benzene-1,4-dioxyacetate dianion; 2,2'-bipy=2,2'-bipyridine) has been synthesized and characterized by elemental analysis, IR, TG and single crystal X-ray diffraction. The Crystal crystallizes in orthorhombic system, the space group is P212121, with the unit cell parameters a=0.698 4(1) nm, b=1.559 7(3) nm, c=1.750 6(4) nm and V=1.906 8(7) nm3, Mr=461.91, Z=4, R=0.057 5, wR=0.078 3. Each copper(Ⅱ) atom is six-coordinated and displays a distorted square pyramidal geometry with a one-capped base by one very long semicoordinate Cu-O(carboxylate) bond. Adjacent distance within the polymeric chain is 1.348 4 nm. Furthermore, such chains are linked through hydrogen bonds and π-π stacking interactions to form supramolecular network. CCDC: 219234.
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