Syntheses, Structures and Characterization of Two Ni(II) and Pb(II) Coordination Polymers Constructed by 2-(4-Fluorophenyl)-1H-imidazo[4,5-f][1,10]phenanthroline and Flexible 4,4'-Oxybis(benzoate) Ligands
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چکیده
Two coordination polymers, [Ni(H2O)(L)(OBA)] (1) and [Pb(L)2(OBA)]·3H2O (2) [L = 2(4-fluorophenyl)-1H-imidazo[4,5f ][1,10]phenanthroline and OBA = 4,4’-oxybis(benzoate)], have been synthesized under hydrothermal conditions, and characterized by elemental analysis, and IR and UV/Vis spectra. Crystal data for 1: C33H21FN4NiO6, triclinic, space group P1̄, a = 13.8490(10), b = 14.932(2), c = 14.993(3) Å, α = 107.534(4), β = 94.670(4), γ = 103.836(5)◦, V = 2830.9(7) Å3, Z = 4. Crystal data for 2: C52H36F2N8O8Pb, orthorhombic, space group Pna21, a = 16.256(4), b = 16.085(5), c = 17.810(3) Å, V = 4657 (2) Å3, Z = 4. In 1, OBA dianions bridge Ni(II) atoms to form two crystallographically distinct chains. These chains are further extended into a 2D supramolecular architecure through π-π interactions. In 2, each OBA dianion links neighboring Pb(II) atoms to yield a helical chain. Further, π-π interactions among adjacent chains give rise to a 3D supramolecular architecture.
منابع مشابه
Syntheses, Crystal Structures and Characterization of Two New Pb(II) and Cu(II) Coordination Polymers Based on 2-(4-Fluorophenyl)-1H- imidazo[4,5-f][1,10]phenanthroline and Benzenedicarboxylate Ligands
Two new coordination polymers, [Pb(L)(1,3-bdc)] ·2.5H2O (1) and [Cu(L)(1,4-bdc)] (2) (L = 2(4-fluorophenyl)-1H-imidazo[4,5-f][1,10]phenanthroline; 1,3-bdc, 1,4-bdc = 1,3and 1,4-benzenedicarboxylate), have been hydrothermally synthesized and characterized by elemental analysis, IR spectra and single-crystal X-ray diffraction. Crystal data for 1: C54H40F2N8O13Pb2, triclinic, space group P1̄, a = 9...
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