Abstract
The monomeric Ni(II) containing Wells-Dawson polyoxometalate (POM) complex K2Rb6Ni0.33[P2W18O62]Cl2∼15·3H2O (K2Rb6–1) was synthesized, for the first time, by the reaction of [Ni2(µ-OH2)(O2CCMe3)4(HO2CCMe3)4] and K6[P2W18O62]. 19H2O in an aqueous medium. The compound was characterized by elemental analysis, FTIR, TGA, and single-crystal XRD (trigonal, space group R3¯m, cell length a = 37.3660(4), b = 37.3660(4), c = 12.8340(2) Å, α = 90, β = 90, γ = 120°, V = 15,518.4(3), Z = 9) techniques. The oxidation state of Ni(II) was calculated through bond valence sum (BVS) calculations. The electrochemical study indicated the super capacitance behavior of POM K2Rb6–1, and its magnetic susceptibility study showed magnetization with a temperature range of 5 K-300 K.
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