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lywbq2008銅蟲 (小有名氣)
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[求助]
投稿后審稿人要求計算No. of parameters,如何求解?謝謝!
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審稿人的意見: (主要是針對 No. of parameters的數(shù)目,我不知道如何依據(jù)晶體的獨立單元中所含的原子來求解,另外還有那些限制可以增加No. of parameters的數(shù)目,或者提供解決問題的途徑,在哪兒可以找到相識的答案,謝謝! I had problems counting the variables. In the HT structure there are 9+3 non-H atoms on general positions and 2 (CL and O6) on special positions for (9+3)*9 + 2*5 = 118 variables. The total shown in the CIF is 121, of which one is the scale factor. What are the other two? |
銅蟲 (小有名氣)
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另外,審稿人還有其余問題,菜鳥一只,不知如何回答,感謝各位提出意見,謝謝! The transmission factors differ substantially for the two structures (0.85-1.00 and 0.65-1.00)) even though the dimensions for the crystal(s) are the same and the linear absorption coefficients are nearly the same. Torsion angles are given with VERY large uncertainties [eg, 5.791(172) at line 81]. Uncertainties are usually limited to values no larger than 19. It is said that the phase transition is reversible. It is implied that the crystal remains single through the transition but that is never actually stated and no supporting evidence is given. The changes in the cell constants are large enough through the transition (ca 2% in the dimensions after correcting for the doubling of a and b; 1.9 deg in beta) that more information should be given. Re "The refined hydrogen proton": the H atom was not refined, the term "hydrogen proton" is redundant, and X-rays are not scattered by real protons, which have no electron density. |
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