Structure and properties of Ce3Pd3Bi4, CePdBi, and CePd2Zn3
作者： Wilfried Hermes , Stefan Linsinger , Ratikanta Mishra , Rainer Pöttgen
DOI: 10.1007/S00706-008-0914-4
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摘要: The intermetallic cerium compounds Ce3-Pd3Bi4, CePdBi, and CePd2Zn3 were synthesized from the elements in sealed tantalum ampoules an induction furnace. characterized by X-ray powder single crystal diffraction: CeCo3B2 type (ordered version of CaCu5), P6/mmm, a = 538.4(4), c 427.7(4) pm, wR2 0.0540, 115 F 2 values, 9 variables for Y3Au3Sb4 type, I \({\bar 4}\)3d, 1005.2(2) w R2 0.0402, 264 Ce3Pd3Bi4, MgAgAs 681.8(1) pm CePdBi. bismuthide structures are build up three-dimensional networks corner-sharing PdBi4 tetrahedra with Pd–Bi distances 281 (Ce3Pd3Bi4) 296 (CePdBi), respectively. atoms located larger voids coordination number 12 10 (CePdBi). In fill channels within [Pd2Zn3] network 18 (6 Pd + Zn) nearest neighbors. three contain stable trivalent experimental magnetic moments μeff 2.70(2), 2.48(1), 2.49(1) μB/Ce atom CePd2Zn3, Susceptibility specific heat data gave no hint ordering down to 2.1 K.
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