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Crystal structure of LnCuSn (Ln = Nd, Sm, Gd)
Veröffentlicht/Copyright:
28. Juli 2010
Abstract
The title compounds were reinvestigated by single crystal X-ray diffraction. They crystallize with the ordered NdPtSb type structure (space group P63mc) rather than with the disordered CaIn2 type structure (space group P63/mmc) as reported previously. Cell parameters for NdCuSn: a = 4.5705(10) Å, c = 7.662(4) Å, c/a = 1.68; SmCuSn: a = 4.5515(9) Å, c = 7.461 (4) Å, c/a = 1.64; and GdCuSn: a = 4.5341(11) Å, c = 7.363(3) Å, c/a = 1.62. The Cu–Sn distances between the [CuSn] polyanions (3.42 Å (Nd), 3.19 Å (Sm), 3.11 Å (Gd)), scale with the size of Ln atoms, while those within the anions remain nearly unchanged (2.67 Å (Nd), 2.68 Å (Sm), 2.68 Å (Gd)).
Published Online: 2010-7-28
Published in Print: 1998-10-1
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Artikel in diesem Heft
- Lattice potentials as an instrument in crystal chemistry. V. Applications to crystal interfaces1
- Crystal structure of LnCuSn (Ln = Nd, Sm, Gd)
- Modular features of sapphirine-type structures
- Intermediate phases in the Ca-rich part of the system (Ca1−xSrx)8[Al12O24](WO4)2
- Struktur des Strontiumvanadiumoxidhydrats, SrV12O27 · 3 H2O: eine Vanadiumoxidbronze mit neuartigem Vanadatgerüst
- The structures of hexagonal phases in Mg–Zn–RE (RE = Sm and Gd) alloys
- Crystal structure of (22R)-6α,9α-difluoro-11β,21-dihydroxy-16α,17α-propylmethylenedioxypregn-4-ene-3,20-dione · 2-propanol (4:1) solvate, C25H34O6F2 · 1/4(C3H8O)
- syn-2-Hydroxy, 2-carboxyl[4.4.1]propellane-6-ene
- Errata
Artikel in diesem Heft
- Lattice potentials as an instrument in crystal chemistry. V. Applications to crystal interfaces1
- Crystal structure of LnCuSn (Ln = Nd, Sm, Gd)
- Modular features of sapphirine-type structures
- Intermediate phases in the Ca-rich part of the system (Ca1−xSrx)8[Al12O24](WO4)2
- Struktur des Strontiumvanadiumoxidhydrats, SrV12O27 · 3 H2O: eine Vanadiumoxidbronze mit neuartigem Vanadatgerüst
- The structures of hexagonal phases in Mg–Zn–RE (RE = Sm and Gd) alloys
- Crystal structure of (22R)-6α,9α-difluoro-11β,21-dihydroxy-16α,17α-propylmethylenedioxypregn-4-ene-3,20-dione · 2-propanol (4:1) solvate, C25H34O6F2 · 1/4(C3H8O)
- syn-2-Hydroxy, 2-carboxyl[4.4.1]propellane-6-ene
- Errata
