3.1. 无序模型处理(OLEX2使用手册)
原文如下:
How to...?
Disorder Modelling
Model disorder across symmetry elements
When modelling disorder across symmetry elements, atoms should be assigned to PART -1. It can sometimes be quite complicated to spot what is going on.

In the grown picture, select the atoms that you don’t want to keep in a single asymmetric unit, and delete the rest

Select what you want to keep, then type
>>PART –c
Same Site Disorder
1) Click on the atom you currently have in that position, say Pb.
2) type 'exyz K' (i.e. the OTHER atom you want on that site)
3) You should now see an atom with a belt on.
4) Double click on this atom, and you should see TWO atoms now.
You can now just refine -- the PARTS are set automatically and the occupancies are linked (FVAR 21/-21)
Selecting any of those, you can then type 'editatom' (or use the GUI)
[IMAGE HERE]
Now you can do whatever you do -- set occupancies etc. But normally not much extra manual work is requiered
Play with this a little bit, and it will become obvious!
译文如下:
3. 如何……?
3.1. 无序模型处理
3.1.1. 处理穿过对称元素的无序模型
当处理的无序模型穿过对称元素时,原子应当分配到PART -1。有时会发现需要处理的情况相当复杂。

在增长视图下,选择不希望保留在不对称单元中的原子,将其删除

选择你想要保留的部分,然后键入
>>PART -c
3.1.2. 共占位无序
1) 点击当前处于该位置的原子,例如说Pb。
2) 键入“exyz K”(即该位置你希望添加的另外一个原子)
3) 现在你应该看到一个披着带子的原子。
4) 双击这个原子,你现在应该会看到两个原子。
接着你只需要进行精修——PART指令已自动设置好,并且占有率使用自由变量(FVAR 21/-21)连接。
选择其中任意一个原子,然后键入“editatom”(或使用GUI——下图红色箭头所指红色方框按钮)

现在你可以进行任何你想做的操作——设置占有率等等。但通常不需要太多额外的手动工作。
尝试一下这个,你就会发现它很好理解!
辅助视频如下:
3.1-无序模型处理
https://www.bilibili.com/video/BV1GV411q7WX
相关延展视频:
Olex2视频教程——穿过对称元素的无序处理(183为例)
https://www.bilibili.com/video/BV1nb411E7Re
Olex2视频教程——穿过对称元素的甲苯无序处理(malbac为例)
https://www.bilibili.com/video/BV1eb411E7Ac
Olex2视频教程——穿过对称元素的无序处理(乙醚、吡啶及高氯酸根离子)以及去除溶剂
https://www.bilibili.com/video/BV1Yb411E74B
Olex2视频教程——穿过对称元素的硝酸根无序处理(Fragment DB工具的应用)
https://www.bilibili.com/video/BV1Yb411E7Yh
Olex2视频教程——穿过对称元素的乙酸乙酯无序结构处理
https://www.bilibili.com/video/BV1Hb411E7Mb
Olex2视频教程——穿过对称元素的甲苯无序处理(FragmentDB工具的应用)
https://www.bilibili.com/video/BV1Yb411E7n2
Olex2视频教程——Olex2处理穿过对称元素无序之part -1 -c指令的应用
https://www.bilibili.com/video/BV1Rb411p7rH
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