The new coordination polymer, [Pb(L)(trans-1,4-chdc)] 1 (L = 1-(1H-imidazo[4,5-f][1,10]phenanthrolin-2-yl)- naphthalen-2-ol and trans-1,4-H2chdc = trans-1,4-cyclohexanedicarboxylic acid), has been hydrothermally synthesized and characterized by elemental analysis, IR spectroscopy and single-crystal X-ray diffraction. Crystal data: C31H24N4O5Pb, monoclinic, space group P21/c, a = 13.579(2), b = 9.7831(15), c = 19.958(3) Å, β = 105.058(2)°, V = 2560.3(7) Å3, Z = 4. The Pb(II) atoms are bridged by the flexible trans-1,4-chdc ligands to form a zigzag chain. The ligands L are located on both sides of the zigzag chains, where π-π interactions among neighboring zigzag chains give rise to a two-dimensional supramolecular network. In addition, O-H···O and N-H···O hydrogen bonding interactions further stabilize the supramolecular network structure of 1.
Graphical Abstract
Synthesis and Crystal Structure of a New Pb(II) Coordination Polymer Constructed by a 1,10-Phenanthroline Derivative and a Flexible Dicarboxylate
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