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Na2Si2O5 |
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Rakic S, Kahlenberg V, Weidenthaler C, Zibrowius B |
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Physics and Chemistry of Minerals 29 (2002) 477-484 |
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Structural characterization of high-pressure C-Na2Si2O5 |
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by single-crystal diffraction and 29Si MAS NMR |
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_database_code_amcsd 0008657 |
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4.8521 23.9793 8.1410 90 90.15 90 P2_1/c |
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atom x y z Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) |
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Na1 .2299 .26138 .5247 .0244 .0240 .0246 .0247 .0009 .0008 .0049 |
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Na2 .2743 .51408 .3548 .0215 .0215 .0208 .0221 .0001 .0015 .0024 |
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Na3 .2534 .47281 -.1019 .0225 .0219 .0248 .0208 .0018 .0002 .0031 |
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Na4 .7548 .28108 .2783 .0229 .0211 .0266 .0209 .0006 .0005 .0027 |
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Si1 .2961 .36325 .1966 .0146 .0136 .0166 .0135 .0002 .0012 .0002 |
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Si2 .6843 .34077 .6429 .0145 .0134 .0156 .0145 .0002 .0001 .0000 |
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Si3 .1831 .40821 .5373 .0145 .0132 .0156 .0147 .0002 .0008 .0003 |
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Si4 .7948 .38941 -.0185 .0152 .0135 .0183 .0137 .0001 .0002 .0003 |
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O1 .1210 .3844 .0352 .0195 .0165 .0243 .0176 .0006 .0010 .0021 |
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O2 .2339 .3015 .2523 .0199 .0196 .0195 .0206 .0007 .0002 .0018 |
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O3 .6209 .3690 .1429 .0184 .0172 .0221 .0159 .0002 .0011 .0006 |
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O4 .2440 .4105 .3392 .0182 .0204 .0182 .0159 .0002 .0022 .0002 |
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O5 .7431 .3414 -.1590 .0192 .0220 .0189 .0166 .0005 .0006 .0015 |
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O6 .7456 .2819 .5655 .0184 .0194 .0179 .0179 .0001 .0002 .0002 |
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O7 .3573 .3561 .6162 .0182 .0160 .0187 .0199 .0004 .0001 .0020 |
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O8 -.1423 .3920 .5597 .0180 .0189 .0172 .0180 .0004 .0011 .0012 |
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O9 .2452 .4667 .6166 .0183 .0196 .0203 .0149 .0004 .0002 .0005 |
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O10 .7336 .4511 -.0767 .0195 .0198 .0192 .0195 .0022 .0002 .0006 |
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