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Solvothermal reaction of Pb(NO_3)_2·6H_2O with rigid linear ligand terephthalic acid(H_2pta) in N,N-dimethylformamide(DMF) produced a new three-dimensional(3D) lead(Ⅱ)coordination polymer[Pb_2(pta)_(1.5)(μ4-OH)(DMF)]_n 1,and its structure was characterized by single-crystal X-ray diffraction analyses.In polymer 1,the μ_4-OH bridges the nearby lead(Ⅱ) ions into an infinite one-dimensional(1D) chain,and then the organic ligand pta~(2-) joins the neighbored chains into a 3D structure by two similar connection modes in different configurations.The solid-state photoluminescent studies revealed that 1 exhibits a strong greenish emission mainly originating from ligand-to-metal charge transfer between the delocalized π bonds of the aromatic carboxylate ligand pta~(2-) and the p orbitals of the Pb~(2+) centers.
Solvothermal reaction of Pb (NO_3) _2 · 6H_2O with rigid linear ligand terephthalic acid (H_2pta) in N, N-dimethylformamide (DMF) produced a new three- 1.5) (μ4-OH) (DMF)] _ n 1, and its structure was characterized by single-crystal X-ray diffraction analysis in polymer 1, the μ_4-OH bridges the nearby lead (Ⅱ) ions into an infinite one- dimensional (1D) chain, and then the organic ligand pta ~ (2-) joins the neighbor chains into a 3D structure by two similar connection modes in different configurations. The solid-state photoluminescent studies revealed that 1 exhibits a strong greenish emission mainly originating from ligand-to-metal charge transfer between the delocalized π bonds of the aromatic carboxylate ligand pta ~ (2-) and the p orbitals of the Pb ~ (2+) centers.