Die Kristallstruktur von Li₂SnO₃

Abstract

Li2SnO3 kristallisiert monoklin, C 2h6, mit a = 5,295, b = 9,184, c = 10,032 Å und β = 100,13°; Z = 8. Die Punktlagen von Sn konnten aus PATTERSON‐Synthesen und die von O und Li aus Differenz‐FOURIER‐Synthesen bestimmt werden. Die Parameter wurden mittels der „Least‐squares‐Methode”︁ [1462 Reflexe (h 01)–(h 71)] verfeinert; der R‐Wert beträgt 10,5%. Die mittleren Abstände betragen SnO 2,20 Å und LiO 2,07 Å. Die Li2SnO3‐Struktur läßt sich vom NaCl‐Typ ableiten: die Oktaederlücken der kubisch‐dichtesten Sauerstoffpackung sind geordnet zu 2/3 mit Li und zu 1/3 mit Sn besetzt.

Structural, electronic properties and chemical bonding in protonated lithium metallates Li2−x H x MO3 (M = Ti, Zr, Sn)

“…The results presented in Table 1 show that for the basic phases (lithium metallates Li 2 MO 3 ) our calculations well reproduce the available structural data [10][11][12]. For protonated Li 2-x H x MO 3 metallates it was obtained that protons substituting for lithium ions noticeably shift from the substitution sites (Li1-Li3) so that the H-O bond lengths (in {HO 6 } octahedra) become substantially different.…”

Synthesis and crystal structure of the palladium oxides NaPd3O4, Na2PdO3 and K3Pd2O4

“…All intense reflections on the ED patterns ( To build the initial model, derivatives of the NaCl-structure type with the A 2 BO 3 formula were analyzed. Three structure models, Li 2 SnO 3 [17], Li 2 MnO 3 [18] and Li 2 RuO 3 [19], are known with C2/c symmetry. These structures can be considered as derivatives of the NaCl type with the following transformation matrix:…”

Synthesis, Structural Characterization and Physical Properties of a New Member of Ternary Lithium Layered Compounds – Li2RhO3

“…In LiMO 2 , alternating layers of lithium and M occupy the octahedral voids of cubic close-packed oxygen ions, generating the rhombohedral α-NaFeO 2 structure type [1]. The layered oxides described by the general formula Li 2 MO 3 have the same oxygen lattice but the layers of octahedral interstices are alternately filled either with Li+ only, or with 1/3 Li + and 2/3 M 4+ [2][3][4][5][6][7]. The transition-metal-containing layers are further ordered into a continuous honeycomb-like network.…”