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The YbNi2−xSn compound, a new structure type of ternary stannides |
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| Authors: | C Rizzoli P S Salamakha O L Sologub G Bocelli |
| Affiliation: | a Dipartimento di Chimica GIAF and Centro per la Strutturistica Diffrattometrica CNR, Viale delle Scienze, 43100 Parma, Italy b Department of Quantum Matter, ADSM, Hiroshima University, 1-3-1 Kagamiyama, 739-8526 Higashi-Hiroshima, Japan |
| Abstract: | The crystal structure of the new ternary stannide YbNi2?xSn space group P63/mmc (N 194), z=4] was investigated using single crystal X-ray diffraction data (automatic single crystal diffractometers Philips PW1100 and Bruker SMART CCD, Mo K radiation). Three crystals with different composition YbNi1.695Sn a=4.424(4) Å, c=15.232(6) Å, V=258.2(4) Å3, ρ=10.066 g cm?3, μ=57.32 mm?1], YbNi1.705Sn a=4.424(5) Å, c=15.179(7) Å, V=257.3(4) Å3, ρ=10.116 g cm?3, μ=57.59 mm?1] and YbNi1.745Sn a=4.303(6) Å, c=16.001(9) Å, V=256.7(5) Å3, ρ=10.199 g cm?3, μ=58.00 mm?1] were refined to R=0.0494, wR2=0.1330, to R=0.0782, wR2=0.1916 and to R=0.0643, wR2=0.1460, respectively. The compounds belongs to a new structure type of intermetallic compounds and are formed from two hypothetical structures YbNi1.5Sn (space group P63/mmc, z=4) and YbNi2Sn (space group P63/mmc, z=4) containing segments of the MnCu2Al, ZrBeSi and ZrPt2Al structures. |
| Keywords: | Rare earth compounds Transition metal compounds Crystal structure |
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