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344081554

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我是小虫虫

[求助] 求助:用MS如何构建具有特定孔径大小的单壁碳纳米管?

本帖子包含3个问题:1、我已经知道用MS构建单壁碳纳米管时N和M的值会影响碳纳米管的孔径和尺寸,问题是如何构建具有特定孔径值的单壁碳纳米管,比如需要的单壁碳纳米管孔径为1nm,N和M如何设置?2、生物炭在建模时与单壁碳纳米管有什么区别?3、如何利用MS或者碳纳米管构建工具构建生物炭模型?
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rlafite

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344081554: 金币+10, 有帮助 2024-09-27 16:58:10
try Nanotube Modeler
https://www.jcrystal.com/products/wincnt/


Avogadro 1.1 includes a new nanotube builder, based on the well-known TubeGen code and website from the Doren group at U. Delaware. (https://turin.nss.udel.edu/research/tubegenonline.html)

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2楼2024-09-27 00:14:31
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344081554

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引用回帖:
2楼: Originally posted by rlafite at 2024-09-27 00:14:31
try Nanotube Modeler
https://www.jcrystal.com/products/wincnt/


Avogadro 1.1 includes a new nanotube builder, based on the well-known TubeGen code and website from the Doren group at U. Delaware. ...

非常感谢您又提供了一个新的软件!我是要在MS中建模后进行计算,请问通过 Nanotube Modeler构建的碳纳米管模型能直接导入MS进行计算吗?如果可以,通过Nanotube Modeler建模后保存为什么格式?有Nanotube Modeler的使用说明吗?
3楼2024-09-27 17:01:02
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dxcharlary

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344081554: 金币+10, ★★★很有帮助, 非常感谢,还有疑问未解 2024-10-05 18:40:53
From n and m one can also compute the circumference c, which is the length of the vector w, which turns out to be:

{\displaystyle c=\left|{\boldsymbol {u}}\right|{\sqrt {(n^{2}+nm+m^{2})}}\approx 246{\sqrt {((n+m)^{2}-nm)}}}
in picometres. The diameter {\displaystyle d} of the tube is then {\displaystyle c/\pi }, that is

{\displaystyle d\approx 78.3{\sqrt {((n+m)^{2}-nm)}}}
also in picometres. (These formulas are only approximate, especially for small n and m where the bonds are strained; and they do not take into account the thickness of the wall.)

出自https://en.wikipedia.org/wiki/Carbon_nanotube

哎,都2024年了,小木虫还不能回复图片和公式

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4楼2024-09-29 23:17:14
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344081554

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引用回帖:
4楼: Originally posted by dxcharlary at 2024-09-29 23:17:14
From n and m one can also compute the circumference c, which is the length of the vector w, which turns out to be:

{\displaystyle c=\left|{\boldsymbol {u}}\right|{\sqrt {(n^{2}+nm+m^{2})}}\approx  ...

非常感谢您提供的信息,让我掌握了碳纳米管直径与N和M的关系。还有疑问请教:生物炭在MS中建模时与单壁碳纳米管有什么区别?
5楼2024-10-05 18:42:47
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