Coordination Polymers Based on Oxovanadium(IV) Butylmalonate Fragments and Potassium, Magnesium, and Cadmium Cations

Abstract The data on the synthesis and study of the crystal structure of compounds {[K 2 Mg 2 (VO) 3 (Bumal) 6 (H 2 O) 15 ] · 2H 2 O} n ( I ) and {[Cd(VO)(Bumal) 2 (H 2 O) 5 ] · H 2 O} n ( II ) are presented. According to X-ray diffraction, these compounds are formed by the anionic fragments [VO(Bumal) 2 (H 2 O)] 2– with oxovanadium(IV) and two butylmalonate anions (H 2 Bumal is C 5 H 10 (COOH) 2 ) coordinated via the chelate mode. In the crystals of compound I (CIF file CCDC no. 1911220), the [VO(Bumal) 2 (H 2 O)] 2– anionic fragments are bound to each other by the K + and Mg 2+ cations into the 2D polymeic structure. In compound II (CIF file CCDC no. 1033008), these fragments are bound by the Cd 2+ cations to form the 1D coordination polymer.