Abstract
One new metal-organic polymer formulated as [Fe2(μ10-btc)0.5(μ2-ox)0.5(μ2-O)1.5]n1 (btc=1,2,4,5-benzenetetracarboxylate, pyramellitate; ox=oxalate) has been synthesized by low-temperature solid-state reaction and characterized by single-crystal X-ray diffraction, elemental analyses, TGA, IR spectra and UV–visible spectra. Complex 1 presents the first 3D coordination network structure constructed by bridging btc, ox and O mixed ligands. In 1, carboxyl groups of btc are all deprotonated and they have a new type of μ10-btc coordination mode. The third-order non-linear optical (NLO) properties of the title compound 1 were also investigated and they exhibit the reverse saturable absorption and self-defocusing performance with modulus of the hyperpolarizability (γ) 5.98×10−30esu for 1 in a 7.45×10−4moldm−3 DMF solution.
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