The Stannides EuPdSn and EuPtSn
نویسنده
چکیده
Z. Naturforsch. 51 b, 806-810 (1996): received November 9, 1995 Europium Intermetallic Compounds, Crystal Structure EuPdSn and EuPtSn were prepared from the elements in tantalum tubes at 1070 K and in vestigated by X-ray diffraction on both powder as well as single crystals. They crystallize with the TiNiSi type structure of space group Pnma and with Z = 4 formula units per cell. Both structures were refined from single-crystal diffractometer data: a = 751.24(9), b = 469.15(6), c = 804.31(9) pm, V = 0.2835(1) nm3 for EuPdSn, and a = 753.38(7), b = 467.72(4), c = 793.08(7) pm, V = 0.2795(1) nnr for EuPtSn. The structures consist of three-dimensional [PdSn] and [PtSn] polyanionic networks in which the europium atoms are embedded. The crystal chemistry of these stannides is briefly discussed.
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