Abstract
Two new organic–inorganic hybrid solids containing Keggin ions and ruthenium complexes have been synthesized and characterized by FT-IR, UV–vis, luminescence, X-ray, and TG analysis. In KNa[Ru(bpy) 3] 2[H 2W 12O 40]·8H 2O ( 1), the [Ru(bpy) 3] 2+ (bpy=2,2′-bipyridine) complex ions are located in between the infinite one-dimensional double-chains formed by adjacent Keggin anions [H 2W 12O 40] 6− linked through {KO 7} and {NaO 6} polyhedra, while in K 6[Ru(pzc) 3] 2[SiW 12O 40]•12H 2O ( 2), the [Ru(pzc) 3] − (pzc=pyrazine-2-carboxylate) complex anions are confined by layered networks of the [SiW 12O 40] 4− clusters connected by potassium ions. Both compounds exhibit three-dimensional frameworks through noncovalent interactions such as hydrogen bonds and anion⋯π interactions. Additionally, compound 1 shows strong luminescence at 604 nm in solid state at room temperature.
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