Abstract
A new cadmium coordination polymer [Cd(L)(Cl)(H2O)]n (1) (L = 5-(imidazol-1-yl)-2-pyridine carboxylic anion) constructed from dinuclear cadmium clusters has been synthesized under hydrothermal condition and structurally characterized by single-crystal X-ray diffraction analysis. The compound crystallizes in triclinic system, space group P-1, with a = 6.8747(6), b = 9.7434(8), c = 9.9119(7) A, α = 118.615(8)°, β = 104.445(7)°, γ = 94.815(7)°, V = 548.01(9) A3, Z = 2. Compound 1 is a one-dimensional (1D) double chain structure based on dinuclear [Cd2(Cl)2] clusters, and is further extended to a 3D supramolecular framework by hydrogen bonds. As a Lewis acid catalyst, compound 1 exhibits excellent catalytic performance for the acetalization reaction under mild conditions and can be reused several times without a significant decrease of the catalytic activity.
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