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zhudonghai2829金蟲 (正式寫手)
博士
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[求助]
求助5Mg(OH)2•MgSO4•3H2O或5Mg(OH)2•MgSO4•2H2O的CIF文件 已有1人參與
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Name and formula Reference code: 01-086-1322 Common name: hexamagnesium dihydrogensulfate hydroxide PDF index name: Magnesium Sulfur Hydroxide Empirical formula: H14Mg6O16S Chemical formula: Mg6 ( SO2 ) ( OH )14 Crystallographic parameters Crystal system: Orthorhombic Space group: Ccmm Space group number: 63 a (?): 15.8950 b (?): 3.1050 c (?): 13.3670 Alpha (°): 90.0000 Beta (°): 90.0000 Gamma (°): 90.0000 Calculated density (g/cm^3): 2.26 Measured density (g/cm^3): 2.30 Volume of cell (10^6 pm^3): 659.71 Z: 2.00 RIR: 0.97 Subfiles and Quality Subfiles: Inorganic Corrosion ICSD Pattern Quality: Blank (B) Comments ANX: AB6X16. Wyckoff Sequence: g f4 c2 a (CCMM). Minor Warning: Site Occupancy factor>1.0 found. Incomplete determination of H atom positions in the structure. Significant Warning: ICSD Warning: The coordinates are those given in the paper but the atomic distances do not agree with those calculated during testing.The coordinates are probably correct. Unit cell data source: Single Crystal. ICSD collection code: 82416. Test from ICSD: Calc. density unusual but tolerable. References Primary reference: Calculated from ICSD using POWD-12++, (1997) Structure: Hamada, E., Ishizawa, N., Marumo, F., Ohsumi, K., Shimizugawa, Y., Reizen, K., Matsunami, T., Acta Crystallogr., Sec. B: Structural Science, 52, 266, (1996) Name and formula Reference code: 00-007-0415 PDF index name: Magnesium Sulfate Hydroxide Hydrate Empirical formula: H16Mg6O17S Chemical formula: Mg6 ( OH )10SO4 _3H2O Crystallographic parameters Crystal system: Orthorhombic Space group: CE a (?): 15.9400 b (?): 3.1100 c (?): 13.3800 Alpha (°): 90.0000 Beta (°): 90.0000 Gamma (°): 90.0000 Volume of cell (10^6 pm^3): 663.29 Z: 2.00 RIR: - Subfiles and Quality Subfiles: Inorganic Corrosion Common Phase Quality: Indexed (I) Comments Color: White. Additional diffraction line(s): Plus 13 lines to 1.140. Unit cell data source: Powder Diffraction. References Primary reference: de Wolff, Technisch Physische Dienst, Delft, Netherlands., ICDD Grant-in-Aid Unit cell: Walter-Levy., C. R. Seances Acad. Sci. (Paris), 202, 1857, (1936) |

金蟲 (正式寫手)
博士

鐵桿木蟲 (職業(yè)作家)
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*data for ICSD #82416 Coll Code 82416 Rec Date 1997/11/10 Mod Date 1998/06/26 Chem Name Hexamagnesium Dihydrogensulfate Hydroxide Structured Mg6 (S O2) (O H)14 Sum H14 Mg6 O16 S1 ANX AB6X16 D(calc) 2.25 Title Structure of Mg6 S O2 (O H)14 determined by micro single-crystal X- ray diffraction Author(s) Hamada, E.;Ishizawa, N.;Marumo, F.;Ohsumi, K.;Shimizugawa, Y.;Reizen, K.;Matsunami, T. Reference Acta Crystallographica B (39,1983-) (1996), 52, 266-269 Unit Cell 15.895(1) 3.105(1) 13.367(1) 90. 90. 90. Vol 659.71 Z 2 Space Group C c m m SG Number 63 Cryst Sys orthorhombic Pearson oS74 Wyckoff g f4 c2 a R Value .073 Red Cell C 3.105 8.097 13.367 90 89.999 101.053 329.857 Trans Red 0.000 -1.000 0.000 / 0.500 0.500 0.000 / 0.000 0.000 1.000 Comments Total SOF on at least one site differs from unity (SOF < 0.997 resp. SOF > 1.003) The structure has been assigned a PDF number (calculated powder diffraction data): 01-086-1322 Synchrotron radiation (single crystal) Unusual difference between calculated and measured density Position of 28 Elements of H Are Undetermined. Atom # OX SITE x y z SOF H ITF(U) Mg 1 +2 4 a 0 0 0 1. 0 0.018(4) Mg 2 +2 8 f 0.3748(5) 0 0.1322(6) 1. 0 0.012(3) S 1 +6 4 c 0.1929(12) 0 0.25 0.5 0 0.011(5) O 1 -2 4 c 0.3887(13) 0.5 0.25 1. H1 0.012(7) O 2 -2 8 g 0.1404(16) 0.370(16) 0.25 0.5 0 0.026(1) O 3 -2 8 f 0.0028(10) 0.5 0.1066(10) 1. H1 0.009(5) O 4 -2 8 f 0.1290(9) 0 -.034(1) 1. H1 0.011(5) O 5 -2 8 f 0.2441(10) 0 0.1511(11) 1. H1 0.025(5) *end for ICSD #82416 |
鐵桿木蟲 (職業(yè)作家)
鐵桿木蟲 (著名寫手)
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