Abstract
A polymeric self-assembled complex {[Pb(pydc)(pydc·H2)(H2O)2]2}n is prepared from the complexation of a novel pyridine containing self-assembling system, LH2, [pydaH2]2+[pydc]2–(pyda = 2,6-pyridindiamine and pydcH2 = 2,6-pyridinedicarboxilic acid) and lead(II) nitrate in 84% yield. The characterization was performed using X-ray crystallography. The crystal system is triclinic with space group P–1 and two molecules per unit cell. The unit cell dimensions are a = 6.913(2)Å, b = 10.687(4)Å and c = 11.182(4)Å with α = 92.805(6)°, β = 101.821(6)° and γ = 95.688(6)°. The final Rvalue is 0.0373 for 4633 reflections measured. This compound is a nine-coordinate binuclear complex with two metal fragments linked via the central four-membered Pb2O2 ring. The crystal also contains a neutral [pydc·H2] molecule, that form hydrogen and coordination bonds that dominate the crystal packing, by forming layers of molecules.
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Ranjbar, M., Moghimi, A. & Aghabozorg, H. Crystal Structure of a Binuclear Polymeric Self-Assembled Lead(II) Complex. ANAL. SCI. 19, 803–804 (2003). https://doi.org/10.2116/analsci.19.803
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DOI: https://doi.org/10.2116/analsci.19.803