Hybrid One-Dimensional 15-Crown-5-ether-uranyl-selenate Polymers in [K@(C10H20O5)][(UO2)(SeO4)(HSeO4)(H2O)]: Synthesis and Characterization

Abstract

The hybrid organic-inorganic uranyl selenate, [K@(C10H20O5)][(UO2)(SeO4)(HSeO4)(H2O)] (I), was prepared by isothermal evaporation from aqueous solutions. The crystal structure of I [orthorhombic, Pnma, a = 15.386(3), b = 10.771(2), c = 13.239(3) Å, V = 2194.0(7) Å3, Z = 4, R1 = 0.042] is based upon complex 15-crown-5-ether-uranyl-selenate polymeric units consisting of uranyl selenate chains decorated by [K@(15-crown-5)]+ complexes via strong ionic K+–O bonds. The 1D hybrid units are packed in a parquetted-like fashion and connected to each other by hydrogen bonds and residual van der Waals interactions.