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attdey木蟲 (著名寫手)
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[交流]
【求助】求助晶體結(jié)構(gòu) 已有1人參與
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| 哪位童鞋知道六方 B4C晶體的空間群和原子坐標啊 畫晶體結(jié)構(gòu)圖用 越詳細越好 ,有10的金幣的辛苦費 |
木蟲之王 (文學泰斗)
至尊山羊
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*data for ICSD #29093 Coll Code 29093 Rec Date 1980/01/01 Mod Date 2007/04/01 Chem Name Boron(I) Carbide Structured B4 C Sum C1 B4 ANX A4X D(calc) 2.5 Title The crystal structure of boron carbide Author(s) Clark, H.K.;Hoard, J.L. Reference Journal of the American Chemical Society (1943), 65, 2115-2119 Zhurnal Fizicheskoi Khimii (1943), 17, 326-335 Unit Cell 5.61 5.61 12.14 90. 90. 120. Vol 330.88 Z 9 Space Group R -3 m H SG Number 166 Cryst Sys trigonal/rhombohedral Pearson hR15 Wyckoff h2 c b Red Cell RH 5.183 5.183 5.183 65.525 65.525 65.525 110.294 Trans Red 0.333 -0.333 -0.333 / -0.667 -0.333 -0.333 / 0.333 0.667 -0.333 Comments Cell from 2nd reference: 5.63, 12.14, z(B1) was given as .36, cf, 23923 AE: B1: B4 C54; B2: B5 C; Ca: B6 C2; C2: B6 C The structure has been assigned a PDF number (calculated powder diffraction data): 01-075-0424 The structure has been assigned a PDF number (experimental powder diffraction data): 35-798 Structure type prototype : B4C Structure type : B4C 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 B 1 +1 18 h 0.1667 -.1667 0.26 1. 0 B 2 +1 18 h 0.106 -.106 0.113 1. 0 C 1 -4 6 c 0 0 0.385 1. 0 C 2 -4 3 b 0 0 0.5 1. 0 *end for ICSD #29093 |
木蟲之王 (文學泰斗)
至尊山羊
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