trans -Diaquatetra(nitrato-O,O' )dysprosium(III) (18-Crown-6)potassium Acetonitrile Solvate: Synthesis and Crystal Structure

摘要

A new complex K(18-crown-6)][Dy(NO3)4(H2O)2] · CH3CN (I) is synthesized, and its structure is studied by X-ray diffraction analysis (space group P21/c, a = 17.200 A, b = 13.377 A, c = 13.087 A, β = 94.21°, Z = 4, full-matrix anisotropic least squares to R = 0.033 for 5283 independent reflections, CAD-4 automated diffractometer, λMoKα radiation). The crystal structure of the compound exists as infinite polymer chains formed by coordination bonds and composed of alternating complex anions [Dy(NO3)4(H2O)2]~- and cations [K(18-crown-6)]~+.