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鐵血丹心志木蟲 (著名寫手)
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[求助]
各位大神看下審稿人關(guān)于晶體解析的問題,多謝指點,感激不盡 已有1人參與
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求助各位,審稿人返回的意見1.是flack因子的問題,估計是解析的時候出了問題,但后面重新解析了,因子是0.5左右,又太大,cifcheck有B類錯誤; 第二個問題,首先是對稱性問題好解決,主要是第二個占有率問題,不知如何進行回答,請教各位大神,幫助分析一下,不勝感激! ![]() 1. The authors report a Flack value of "0.000" with no s.u. value.This is _not_ acceptable and shows that the authors have incorrectly set up the final refinement run. The final refinement run must be done properly before re-submission. When the authors do have an acceptable Flack value, it should be included in Table 1, with perhaps a comment in the text about what conclusions may be drawn from the correct value. 2. In the descriptive text we should be told details of the space-group-imposed symmetry, e.g. that P1 is at a site with -4m2 symmetry, that Al1 is at site with 4mmm symmetry, etc.... We should also be told why O3, Na1 and Na2 were assigned occupancy values of 0.874, 0.4 and 0.1 respectively. |

至尊木蟲 (職業(yè)作家)
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1. flack因子是0.5的話,應(yīng)該會有BASF/TWIN提示,因為0.5表示了結(jié)構(gòu)數(shù)據(jù)屬于倒反孿晶/外消旋孿晶,是缺面中的一類特殊的孿晶,孿晶操作為倒反中心,ins文件中輸入BASF/TWIN即可將該錯誤消除,數(shù)值為0.5說明結(jié)構(gòu)是消旋的,對于絕對結(jié)構(gòu)的確定是沒有意義的, 2. 第二個占有率的問題中,O3, Na1 and Na2的占有率都小于1,首先確定原子是否指認(rèn)錯誤,沒錯的話,可以考慮原子是否處在特殊位置,若是特殊位置,根據(jù)類型分別解釋即可。 |

木蟲 (著名寫手)

至尊木蟲 (職業(yè)作家)

木蟲 (著名寫手)

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