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[K(18-crown-6)]2S6•2CH3CN was obtained from K2S5 and 18-crown-6 in acetonitrile. The crystalline compound easily loses the incorporated acetonitrile. Its crystal structure was determined by X-ray diffraction with 3095 reflexions, R = 0.058. Crystal data: a = 1621.4(8), b = 812.1(3), c = 3271(2) pm, β = 90.75(4)°, space group C2/c, Ζ = 4. The chain-like S62- ion has transoid conformations. Each of its terminal atoms is coordinated to one K+ ion, which in turn is surrounded by one crown ether molecule.doi:10.1515/znb-1992-1204 fatcat:zfamklwalbgojpulwow6f26mwu