The Silver(I) Mercury(II) Oxide Nitrate with the Empirical Formula
نویسنده
چکیده
Z. Naturforsch. 54 b, 1489-1494 (1999); received September 7, 1999 Crystal Structure, Silver Mercury(II) Oxide Nitrate The title compound was prepared by solid state reaction of Ag2Ü with Hg(N03)2-H20 in air at 350 °C. Its crystal structure was determined from single-crystal diffractometer data: Pnma, a = 620.1(1) pm, b = 670.1(1) pm, c = 1267.5(2) pm, Z = 4, R = 0.026 for 586 structure factors and 33 variable parameters. The compound may be represented by the formula Ag(Hg0 )2N0 3 . The mercury(II) together with the oxygen atoms form zig-zag chains with linear coordination of the mercury atoms. The oxygen atoms of these chains are linked via silver(I) atoms, thus forming two-dimensionally infinite nets, which contain the trigonal planar nitrate groups in interstices. Thus, only secondary Hg-O and Ag-O
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