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enihc木蟲 (小有名氣)
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[交流]
【求助】求教對CIF文件中2個A類錯誤的解釋 已有4人參與
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我的CIF文件有兩個A類錯誤,問了一個解晶體結(jié)構(gòu)的老師,他說這是由于在做吸收校正時沒有考慮晶體形貌而產(chǎn)生的(測試晶體尺寸為0.50mm*0.12mm*0.02mm),是這樣的嗎? Alert level A SHFSU01_ALERT_2_A The absolute value of parameter shift to su ratio > 0.20 Absolute value of the parameter shift to su ratio given 5.305 Additional refinement cycles may be required. Author Response: The mophorlogy of single crystal was not considered during empirical \ absorption correction. PLAT080_ALERT_2_A Maximum Shift/Error ............................ 5.30 Author Response: The mophorlogy of single crystal was not considered during empirical \ absorption correction. GOOF值和R因子如下。 如果我想使用這個CIF,我該如何在CIF中解釋上面這兩個A類錯誤呢?(給出的Response是我擬寫的內(nèi)容)請各位老師和高手指點迷津!謝謝大家! _refine_ls_R_factor_all 0.0314 _refine_ls_wR_factor_ref 0.0786 _refine_ls_goodness_of_fit_ref 1.044 另外,還有7個C類錯誤和10個G類錯誤,需要怎么處理它們呢?我可以不管C和G么? Alert level C PLAT029_ALERT_3_C _diffrn_measured_fraction_theta_full Low ....... 0.97 PLAT232_ALERT_2_C Hirshfeld Test Diff (M-X) Al2 -- N5 .. 5.67 su PLAT324_ALERT_2_C Check for Possibly Missing H on Coordinating.... N3 PLAT041_ALERT_1_C Calc. and Reported SumFormula Strings Differ ? PLAT045_ALERT_1_C Calculated and Reported Z Differ by ............ 0.25 Ratio PLAT068_ALERT_1_C Reported F000 Differs from Calcd (or Missing)... ? PLAT077_ALERT_4_C Unitcell contains non-integer number of atoms .. ? Alert level G FORMU01_ALERT_2_G There is a discrepancy between the atom counts in the _chemical_formula_sum and the formula from the _atom_site* data. Atom count from _chemical_formula_sum:Al1.5 N9.5 Nd1 O0.5 Si5.5 Atom count from the _atom_site data: Al1.18 N9.6 Nd1.0014 O0.4 Si5. CELLZ01_ALERT_1_G Difference between formula and atom_site contents detected. CELLZ01_ALERT_1_G ALERT: Large difference may be due to a symmetry error - see SYMMG tests From the CIF: _cell_formula_units_Z 4 From the CIF: _chemical_formula_sum Al1.5 N9.50 Nd O0.50 Si5.50 TEST: Compare cell contents of formula and atom_site data atom Z*formula cif sites diff Al 6.00 4.72 1.28 N 38.00 38.40 -0.40 Nd 4.00 3.99 0.01 O 2.00 1.60 0.40 Si 22.00 23.28 -1.28 PLAT301_ALERT_3_G Note: Main Residue Disorder ................... 32.00 Perc. PLAT396_ALERT_2_G Deviating Si-O-Si Angle from 150 Deg for PLAT200_ALERT_1_G Check the Reported _diffrn_ambient_temperature 293 K PLAT793_ALERT_4_G The Model has Chirality at Si2 (Verify) .... S PLAT793_ALERT_4_G The Model has Chirality at Si3 (Verify) .... R PLAT811_ALERT_5_G No ADDSYM Analysis: Too Many Excluded Atoms .... ! |
新蟲 (小有名氣)
木蟲 (小有名氣)
木蟲 (小有名氣)
至尊木蟲 (職業(yè)作家)

木蟲 (小有名氣)
至尊木蟲 (職業(yè)作家)

木蟲 (小有名氣)
木蟲 (職業(yè)作家)
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