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Bi0.5 O7 P2 Ta0.5 |
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Oyetola S, Verbaere A, Guyomard D, Crosnier M, Piffard Y, Tournoux M |
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European Journal of Solid State and Inorganic Chemistry 28 (1991) 23-36 |
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New ZrP2O7-like diphosphates of either mixed |
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(M^III^1/2M'^V^1/2) cations (M=Sb,Bi,Nd,Eu;M'=Sb, Nb,Ta) or M'^V^ |
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cations (M'=Ta,Nb):synthesis and structure |
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_cod_database_code 1000327 |
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_database_code_amcsd 0012540 |
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8.253 8.253 8.253 90 90 90 Pa3 |
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atom x y z occ |
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Bi1 0 0 0 .5 |
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Ta1 0 0 0 .5 |
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P1 .3970 .3970 .3970 |
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O1 .231 .431 .448 |
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O2 .5 .5 .5 |
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O7 P1.901 Ta0.899 |
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Oyetola S, Verbaere A, Guyomard D, Crosnier M, Piffard Y, Tournoux M |
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European Journal of Solid State and Inorganic Chemistry 28 (1991) 23-36 |
|
New ZrP2O7-like diphosphates of either mixed |
|
(M^III^1/2M'^V^1/2) cations (M=Sb,Bi,Nd,Eu;M'=Sb, Nb,Ta) or M'^V^ |
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cations (M'=Ta,Nb):synthesis and structure |
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_cod_database_code 1000328 |
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_database_code_amcsd 0012541 |
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8.109 8.109 8.109 90 90 90 Pa3 |
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atom x y z occ |
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Ta1 0 0 0 .899 |
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P1 .3925 .3925 .3925 .951 |
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O1 .4076 .4368 .2117 |
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O2 .5 .5 .5 |
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Cs8 Nb10 O41 Si6 |
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Crosnier M, Pagnoux C, Guyomard D, Verbaere A, Piffard Y, Tournoux M |
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European Journal of Solid State and Inorganic Chemistry 28 (1991) 971-981 |
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The crystal structure of a novel cyclotrisilicate: Cs8Nb10O23(Si3O9)2. |
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Its relationship with the pyrochlore and benitoite types |
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_cod_database_code 1000469 |
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_database_code_amcsd 0012545 |
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7.342 7.342 22.16599 90 90 120 P6_3/mmc |
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atom x y z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) |
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Cs1 1/3 2/3 .15558 .0311 .0311 .0276 .0156 0 0 |
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Cs2 0 0 .09183 .0345 .0345 .0233 .0173 0 0 |
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Nb1 .5 0 0 .0264 .0214 .0235 .0107 -.0003 -.0006 |
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Nb2 1/3 2/3 .63573 .0176 .0176 .0158 .0088 0 0 |
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Si1 .8623 .7246 .25 .0011 .0004 .0017 .0002 0 0 |
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O1 .117 .234 .25 .0010 .0007 .0056 .0004 0 0 |
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O2 .2090 .4180 .4816 .917 .0032 .0034 .0031 .0017 -.0003 -.0006 |
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O3 .5457 .0914 .0863 .0043 .0016 .0019 .0008 -.0002 -.0004 |
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O4 .2057 .4114 .6898 .0048 .0017 .0018 .0009 .0003 .0006 |
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K2 Nb2 O14 Si4 |
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Crosnier M, Guyomard D, Verbaere A, Piffard Y, Tournoux M |
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Journal of Solid State Chemistry 98 (1992) 128-132 |
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The potassium niobyl cyclotetrasilicate K2(NbO)2Si4O12 |
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_cod_database_code 1000339 |
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_database_code_amcsd 0013735 |
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8.7404 8.7404 8.136 90 90 90 P4bm |
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atom x y z U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) |
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Nb1 0 0 .2160 .0071 .0071 .0079 0 0 0 |
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Nb2 0 0 .7194 .0064 .0064 .0079 0 0 0 |
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K1 .3226 .8226 .9919 .0180 .0180 .0124 -.0034 .0005 .0005 |
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Si1 .1242 .6242 .3015 .0076 .0076 .0039 .0007 .0004 .0004 |
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Si2 .1240 .6240 .6938 .0071 .0071 .0036 -.0001 -.0003 -.0003 |
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O1 .4251 .2882 .2330 |
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O2 .4219 .2892 .7654 |
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O3 0 0 0 |
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O4 0 0 .5010 |
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O5 .1200 .6200 .4968 |
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O6 .5 0 .228 |
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O7 .5 0 .7628 |
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View JMOL 3-D Structure
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