Neue Verbindungen im System Ca/Ni/Si
作者： Jochen Glaser
DOI: 10.1002/1521-3749(200209)628:9/10<1946::AID-ZAAC1946>3.0.CO;2-I
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摘要: Im System Ca—Ni—Si wurden die neuen Verbindungen CaNi2Si und Ca3Ni3Si2 hergestellt ihre Strukturen rontgenographisch an Einkristallen bestimmt. kristallisiert in der Raumgruppe P63/mmc (Nr. 194) mit den Gitterparametern a = 400, 38(5) pm, c 988, 6(2) pm Z 2 (R1 0, 0307, wR2 0553 fur alle gemessenen symmetrieunabhangigen Reflexe) als Besetzungsvariante des ReB3-Typs. Fur wurde eine orthorhombische Zelle Pnma 62), 4 926, 59(5) b 396, 69(2) 1814, 1(2) gefunden 0435, 0605 Reflexe). Ni Si bilden gefaltete zweidimensional unendliche Schichten, durch Ca-Atome separiert werden. New Compounds the Ca/Ni/Si The new compounds and were synthesized Ca—Ni—Si-system their structures determined by single crystal X-ray diffraction. crystallizes space group (no. with lattice parameters 400.38(5) 988.6(2) 0.0307, 0.0553 for all symmetry-independent reflections) site occupancy variant of ReB3 type. The unit cell was found to be orthorhombic 926.59(5) 396.69(2) 1814.1(2) (Pnma, no. 62, 4, R1 0.0435, 0.0605 reflections). nickel silicon atoms build puckered two dimensional layers which are separated calcium atoms.
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