KTi6Nb5O25 : A member of a series of chemically twinned rutile oxides (AM3O9) (M2O4)n
作者： D. Groult , B. Raveau
DOI: 10.1016/0025-5408(83)90074-0
关键词: Group (periodic table) 、 Octahedron 、 Materials science 、 Oxide 、 Crystallography 、 Series (mathematics) 、 Orthorhombic crystal system 、 Rutile
摘要: Abstract A new oxide KTi6Nb5O25 with a structure related to that of KTi2Ta5O15 (1) has been prepared and described. It crystallizes in the orthorhombic system unit-cell dimensions = 6.611(4) , b 8.880(8) c 30.154(18) space group Cmcm. The tunnel this studied from powder data. is built up rutile slabs whose width determined by strings six octahedra. This compound may be described as fourth member chemically twinned series (AM3O9) (M2O4)n, KTi2Ta5O17 being second series.
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sci-hub.se 参考文章(6)
A.A. Awadalla, B.M. Gatehouse, Crystal structure of some niobium and tantalum oxides. IV. The structure of KTa5O13 and its relationship to the α-PbO2 structure Journal of Solid State Chemistry. ,vol. 24, pp. 183- 187 ,(1978) , 10.1016/0022-4596(78)90008-7
M. Hervieu, B. Raveau, A layer structure: The titanoniobate CsTi2NbO7 Journal of Solid State Chemistry. ,vol. 32, pp. 161- 165 ,(1980) , 10.1016/0022-4596(80)90562-9
B.M. Gatehouse, M.C. Nesbit, A new alkali metal titanotantalate, KTi2Ta5O17—A compound that exhibits the “chemically twinned” rutile structure Journal of Solid State Chemistry. ,vol. 33, pp. 153- 158 ,(1980) , 10.1016/0022-4596(80)90114-0
D. T. Cromer, J. T. Waber, Scattering factors computed from relativistic Dirac–Slater wave functions Acta Crystallographica. ,vol. 18, pp. 104- 109 ,(1965) , 10.1107/S0365110X6500018X
B.M. Gatehouse, M.C. Nesbit, Preparation and structure refinement of KTi3TaO9 and K3TiTa7O21 Journal of Solid State Chemistry. ,vol. 39, pp. 1- 6 ,(1981) , 10.1016/0022-4596(81)90295-4
Houria Rebbah, Gilbert Desgardin, Bernard Raveau, Nonstoichiometric oxides with a layer structure: The compounds A1−x(Ti1−xM1+x)O5 Journal of Solid State Chemistry. ,vol. 31, pp. 321- 328 ,(1980) , 10.1016/0022-4596(80)90094-8