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[求助]
求一高手幫忙解一晶體數(shù)據(jù),不勝感激
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| 本人初學晶體,有一晶體數(shù)據(jù)R值過大,求一高手幫忙把R值降下來,不勝感激! |
木蟲 (小有名氣)
| 我是想發(fā)ACTA E,但是編輯說R值太大,還有gof值也不好,所以讓我修改!應該沒有什么錯誤了吧!“Based on the revised cif file that was sent back to me, I updated it and have attached a copy. However, the R factor is very bad and the GOF is also very bad which indicates that there are some major probems with the refinement of this structure. Maybe it is the disorder, or someting else. Therefore, I do not feel that I can accept this submission as it currently exists. If you can improve the refinement and R factors significantly then it will probable be OK. Therefore, I will suggest that you accept a withdrawall of this paper at this time which you can resubmit after improving the refinement. So, if I do not hear back from you in this regard with a better refinement within on week, I shall withdraw this paper.”這是編輯和我說的! |
木蟲 (小有名氣)
木蟲 (小有名氣)
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把br2 和br4作無序處理, GooF正常了,殘余電子密度峰降下來了。但是R值上去。 無序處理的結果: _refine_ls_R_factor_all 0.1735 _refine_ls_R_factor_gt 0.1146 _refine_ls_wR_factor_ref 0.3357 _refine_ls_wR_factor_gt 0.3124 _refine_ls_goodness_of_fit_ref 1.059 _refine_ls_restrained_S_all 1.058 _refine_ls_shift/su_max 0.000 _refine_ls_shift/su_mean 0.000 _diffrn_measured_fraction_theta_max 0.982 _diffrn_reflns_theta_full 25.02 _diffrn_measured_fraction_theta_full 0.982 _refine_diff_density_max 1.413 _refine_diff_density_min -1.159 _refine_diff_density_rms 0.189 沒有無序處理的結果: _refine_ls_R_factor_all 0.1800 _refine_ls_R_factor_gt 0.1194 _refine_ls_wR_factor_ref 0.2291 _refine_ls_wR_factor_gt 0.2186 _refine_ls_goodness_of_fit_ref 1.425 _refine_ls_restrained_S_all 1.485 _refine_ls_shift/su_max 0.067 _refine_ls_shift/su_mean 0.004 _diffrn_measured_fraction_theta_max 0.982 _diffrn_reflns_theta_full 25.02 _diffrn_measured_fraction_theta_full 0.982 _refine_diff_density_max 2.153 _refine_diff_density_min -1.024 _refine_diff_density_rms 0.191 我不是告訴,所以也不知道那組模型更合理。 |
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