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xiongying_swust新虫 (正式写手)
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[求助]
求助:六方相金属碳化物Cr7C3的CIF文件 已有1人参与
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各位大侠,小弟急需六方相金属碳化物Cr7C3的CIF文件,可目前在网上只查到正交相Cr7C3的CIF文件, 谢谢啦! |
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data for ICSD #52289 Coll Code 52289 Rec Date 2003/04/01 Mod Date 2008/08/01 Chem Name Chromium Carbide (7/3) Structured Cr7 C3 Sum C3 Cr7 ANX N3O7 D(calc) 6.9 Title The structure and composition of the chromium- and manganese-carbides Author(s) Westgren, A. Reference Jernkontorets Annaler (1935), 1935, 231-240 Transactions of the Metallurgical Society of Aime (1961), 221, 479-484 Unit Cell 14.01 14.01 4.532 90. 90. 120. Vol 770.37 Z 8 Space Group P 63 m c SG Number 186 Cryst Sys hexagonal Pearson hP80 Wyckoff d3 c7 b Red Cell P 4.532 14.01 14.01 120 90 90 770.365 Trans Red 0.000 0.000 1.000 / 1.000 0.000 0.000 / 0.000 1.000 0.000 Comments Preliminary structure, cf. 87129 Cell of Mn7 C3: 13.90, 4.54 Cell of Mn7 C3 (2nd ref., Butler et al.): 13.870, 4.541; of (Mn.65 Fe.35)7 C3: 13.820, 4.532 The structure has been assigned a PDF number (calculated powder diffraction data): 01-071-3789 The structure has been assigned a PDF number (experimental powder diffraction data): 11-550 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 Cr 1 +0 2 b 0.3333 0.6667 0.75 1. 0 Cr 2 +0 6 c 0.06 0.94 0.5 1. 0 Cr 3 +0 6 c 0.16667 0.33334 0.75 1. 0 Cr 4 +0 6 c 0.23 0.46 0.25 1. 0 Cr 5 +0 6 c 0.27 0.54 0.75 1. 0 Cr 6 +0 6 c 0.56 0.12 0 1. 0 Cr 7 +0 12 d 0.27 0.04 0.25 1. 0 Cr 8 +0 12 d 0.44 0.06 0.5 1. 0 C 1 +0 6 c 0.1 0.2 0 1. 0 C 2 +0 6 c 0.4 0.8 0 1. 0 C 3 +0 12 d 0.4 0.1 0.5 1. 0 *end for ICSD #52289 |
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