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*data for ICSD #36245 Coll Code 36245 Rec Date 1980/01/01 Mod Date 1999/06/02 Chem Name Bismuth Dioxide Carbonate Structured Bi2 O2 C O3 Sum C1 Bi2 O5 ANX AB2X5 Min Name Bismutite D(calc) 8.27 Title On the crystal structure of Bi2 O2 C O3 (bismutite) and Ca Bi2 O2 (C O3)2 (beyerite) Author(s) Lagercrantz, A.;Sillen, L.G. Reference Arkiv foer Kemi, Mineralogi och Geologi, A (1948), 25(2), 1-21 Unit Cell 3.867 3.867 13.686 90. 90. 90. Vol 204.66 Z 2 Space Group I 4/m m m SG Number 139 Cryst Sys tetragonal Pearson tI16 Wyckoff m2 h e2 d b Red Cell I 3.867 3.867 7.369 105.211 105.211 89.999 102.328 Trans Red 1.000 0.000 0.000 / 0.000 -1.000 0.000 / -0.500 0.500 -0.500 Comments O of CO3 split on 6 different positions Total SOF on at least one site differs from unity (SOF < 0.997 resp. SOF > 1.003) Compound with mineral name: Bismutite The structure has been assigned a PDF number: 41-1488 No R value given in the paper. At least one temperature factor missing in the paper. Atom # OX SITE x y z SOF H Bi 1 +3 4 e 0 0 0.160(3) 1. 0 O 1 -2 4 d 0 0.5 0.25 1. 0 C 1 +4 2 b 0 0 0.5 1. 0 O 2 -2 4 e 0 0 0.591 0.25 0 O 3 -2 16 m 0.114 0.114 0.579 0.125 0 O 4 -2 16 m 0.197 0.197 0.546 0.125 0 O 5 -2 8 h 0.228 0.228 0.5 0.125 0 *end for ICSD #36245 £¨1£©¸ù¾ÝÕâ¸ö½¨Ä£µÃµ½ºÜ¹ÖÒìµÄ½á¹¹£¬Ò»¸öC¾ÓÈ»Á´½ÓÁ˽ü¶þÊ®¸öO¡£ £¨2£©½á¹¹ÓÅ»¯ºóµÃµ½¸ü¹ÖÒìµÄ½á¹¹£¬ÑÏÖØÆ«ÀëÔÓнṹ¡£ £¨3£©ÔõôÀí½âoccupancy?½¨Ä£µÄʱºòÔõô¿¼ÂÇÕâ¸ö£¿¼ÆËãÄÜ´ø½á¹¹ºÍPDOSµÄʱºò£¬¸Ã¶ÔÕâ¸öÄ£ÐÍÔõô´¦Àí£¿Ö±½Ó¼ÆËã½á¹ûҲʮ·Ö¹ÖÒ죬½û´ø¿í¶ÈûÓУ¬¿´ÆðÀ´Ïñ½ðÊô¡£ |
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