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gyliu
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waiy2001(½ð±Ò+2,VIP+0): 3-25 19:16
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*data for ICSD #38420 Coll Code 38420 Rec Date 1983/12/31 Mod Date 2004/04/01 Chem Name Yttrium Tantalate Structured Y (Ta O4) Sum O4 Ta1 Y1 ANX ABX4 D(calc) 7.56 Title On the structural and luminescent properties of the M' Ln Ta O4 Rare Earth tantalates Author(s) Brixner, L.H.; Chen, H.-Y. Reference Journal of the Electrochemical Society (1983), 130, 2435-2443 Phase Transition (1992), 38, 127-220 Unit Cell 5.298(1) 5.451(1) 5.111(1) 90. 96.45 90. Vol 146.67 Z 2 Space Group P 1 2/a 1 SG Number 13 Cryst Sys monoclinic Pearson mP12 Wyckoff g2 f e R Value .34 Red Cell P 5.111 5.298 5.451 90 90 96.45 146.668 Trans Red 0.000 0.000 1.000 / 1.000 0.000 0.000 / 0.000 1.000 0.000 Comments HT-form in I41/a (2nd ref., Tomaszewski) The structure has been assigned a PDF number (calculated powder diffraction data): 01-077-0359 The structure has been assigned a PDF number (experimental powder diffraction data): 24-1425 Structure type : YTaO4 X-ray diffraction from single crystal Atom # OX SITE x y z SOF H ITF(B) Ta 1 +5 2 f 0.25 0.3056(2) 0.5 1. 0 0 Y 1 +3 2 e 0.25 0.7658(5) 0 1. 0 0 O 1 -2 4 g 0.489(2) 0.434(2) 0.268(2) 1. 0 0.3(2) O 2 -2 4 g 0.102(2) 0.084(2) 0.252(2) 1. 0 0.4(2) Lbl Type Beta11 Beta22 Beta33 Beta12 Beta13 Beta23 Ta1 Ta5+ 0.06(6) 0.17(6) 0.25(6) 0 0.00(3) 0 Y1 Y3+ 0.34(9) 0.21(9) 0.41 0 0.00(6) 0 *end for ICSD #38420 |
2Â¥2009-03-25 12:42:04
gyliu
Ìú¸Ëľ³æ (Ö°Òµ×÷¼Ò)
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*data for ICSD #109190 Coll Code 109190 Rec Date 2007/04/01 Chem Name Yttrium Tantalate Structured Y (Ta O4) Sum O4 Ta1 Y1 ANX ABX4 D(calc) 7.72 Title Ueber ternaere Oxide der Niobs und Tantals vom Typ A B O4 Author(s) Keller, C. Reference Zeitschrift fuer Anorganische und Allgemeine Chemie (1962), 318, 89-106 Unit Cell 5.239(3) 10.893(9) 5.056(3) 90. 95.52 90. Vol 287.2 Z 4 Space Group I 1 2/a 1 SG Number 15 Cryst Sys monoclinic Pearson mS24 Wyckoff f2 e2 Red Cell I 5.056 5.239 6.453 111.607 110.652 95.52 143.6 Trans Red 0.000 0.000 -1.000 / -1.000 0.000 0.000 / 0.500 0.500 0.500 Comments Not refined Structure type : YNbO4(mS) X-ray diffraction from single crystal No R value given in the paper. At least one temperature factor missing in the paper. Atom # OX SITE x y z SOF H Y 1 +3 4 e 0.25 0.622 0 1. 0 Ta 1 +5 4 e 0.25 0.145 0 1. 0 O 1 -2 8 f 0.090 0.461 0.252 1. 0 O 2 -2 8 f -.003 0.717 0.290 1. 0 *end for ICSD #109190 |
3Â¥2009-03-25 12:42:25
gyliu
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4Â¥2009-03-25 12:44:04
zwlong
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5Â¥2009-03-25 23:17:47














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