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[交流]
【請教】精修時出現(xiàn)這樣的問題怎么解決? 已有5人參與
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| 解結(jié)構(gòu)時出現(xiàn)這樣的問題怎么解決?** Absolute structure probably wrong - invert and repeat refinement ** |
鐵桿木蟲 (著名寫手)
禁蟲 (知名作家)
木蟲 (正式寫手)
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要考慮是不是twins晶體。 查看一下你的空間群和lst文件,看看有沒有如下信息: Expected values are 0 (within 3 esd's) for correct and +1 for inverted absolute structure. /絕對構(gòu)型錯誤,應(yīng)轉(zhuǎn)化成1-x,1-y,1-z,即在INS 文件中加入MOVE 1 1 1 –1 ** Absolute structure probably wrong - invert and repeat refinement ** 附: MOVE dx [0] dy [0] dz [0] sign [1] The coordinates of the following atoms are changed to: x = dx + sign * x, y = dy + sign * y, z = dz + sign * z until superseded by a further MOVE. MOVE should not be used at the same time as the specification of zero coordinates to indicate that an atom should not be used in fitting a fragment of known geometry (e.g. AFIX 66), because after the move the coordinates will no longer be zero! |

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