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2001 (1)
1Author    Ratikanta Mishra, Rainer Pöttgen, Gunter KotzybaRequires cookie*
 Title    New Metal-Rich Compounds NblrSi, NblrGe, and TalrSi -Synthesis, Structure, and Magnetic Properties  
 Abstract    The metal-rich intermetallic compounds NblrSi, NblrGe, and TalrSi were synthesized by arc-melting of the elements and subsequent annealing in glassy carbon crucibles in a high-fre-quency furnace. The three compounds were investigated by X-ray diffraction on powders and single crystals: TiNiSi type, Pnma, a = 641.27(3), b = 379.48(2), c = 727.70(3) pm, wR2 = 0.0773, 430 F 2 values for NblrSi, a = 645.48(3), b = 389.21(2), c = 741.11(4) pm, wR2 = 0.0981, 297 F 2 values for NblrGe, and a = 638.11(3), b = 378.69(2), c = 726.78(3) pm, wR2 = 0.0887, 290 F 2 values for TalrSi with 20 variables for each refinement. The iridium and silicon (germanium) atoms form a three-dimensional network of puckered IrjSi3 and Ir3Ge3 hexagons in which the niobium (tantalum) atoms fill larger cages. Magnetic susceptibility measurements on NblrSi and TalrSi indicate Pauli paramagnetism with room temperature susceptibilities of 0.30(5)-10~9 and 0.97(5)-10-9 m3/mol, respectively. 
  Reference    Z. Naturforsch. 56b, 463 (2001); received April 30 2001 
  Published    2001 
  Keywords    Silicides, Germanides, Magnetic Properties 
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 TEI-XML for    default:Reihe_B/56/ZNB-2001-56b-0463.pdf 
 Identifier    ZNB-2001-56b-0463 
 Volume    56