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Mod Date 1988/01/20 Chem Name Barium Tetratitanate Structured Ba Ti4 O9 Sum Ba1 O9 Ti4 ANX AB4X9 D(calc) 4.53 Title Polarized Octahedra in Barium Tetratitanate Author(s) Templeton, D.H.;Dauben, C.H. Reference Journal of Chemical Physics (1960), 32, 1515-1518 Unit Cell 14.53(2) 3.79(1) 6.29(1) 90. 90. 90. Vol 346.38 Z 2 Space Group P m m n Z SG Number 59 Cryst Sys orthorhombic Pearson oP28 Wyckoff f6 b a R Value .35 Red Cell P 3.79 6.29 14.53 90 89.999 89.999 346.382 Trans Red 0.000 1.000 0.000 / 0.000 0.000 -1.000 / -1.000 0.000 0.000 Comments The structure has been assigned a PDF number (calculated powder diffraction data): 01-075-2048 X-ray diffraction from single crystal Unusual difference between calculated and measured density Atom # OX SITE x y z SOF H ITF(B) Ba 1 +2 2 b 0.25 0.75 0.7076(5) 1. 0 2.6 Ti 1 +4 4 f 0.0363(5) 0.25 0.807(1) 1. 0 1.7 Ti 2 +4 4 f 0.1298(5) 0.25 0.248(1) 1. 0 1.7 O 1 -2 4 f 0.514(2) 0.25 0.158(4) 1. 0 2.8 O 2 -2 4 f 0.604(2) 0.25 0.740(3) 1. 0 2.3 O 3 -2 4 f 0.155(2) 0.25 0.952(4) 1. 0 2.9 O 4 -2 4 f 0.095(2) 0.25 0.560(4) 1. 0 3.1 O 5 -2 2 a 0.25 0.25 0.346(6) 1. 0 2.8 *end for ICSD #31783 ÒÔÉÏÕâЩÎÒÊÇ´ÓFinditÖÐÕÒµ½µÄ¡£Í¨¹ýÕâ¸öÔÙ½èÖúMS£¬¾Í¿ÉÒÔ»³öËÄîÑËá±µ(BaTi4O9)µÄÈýά¾§Ìå½á¹¹Í¼¡£Ï£Íû¿ÉÒÔ°ïµ½Äã¡£ |
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