Apologies if this is a naive question but I haven't had much success after finding solution
over internet. I want to generate electrostatic potential grid cube file using point charge
model for small molecules. Any suggestion for is highly appreciated. Thank you in advance
You can use Multiwfn (http://sobereva.com/multiwfn) to easily generate electrostatic potential cube file based on atomic charge.
Below is an example of generating such cube file for water:
Write a plain text file named "water.chg" with below content
O -1.68940800 0.00002500 0.00194100 -0.728713
H -1.08142400 -0.01012400 -0.78063300 0.364427
H -1.06246900 0.00994900 0.76945700 0.364286
The 2,3,4 columns correspond to XYZ coordinates in Angstrom, and the last column corresponds to atomic charges.
Then boot up Multiwfn and input
water.chg
5 // Generate grid data
8 // ESP based on atomic charges
2 // Medium quality grid
Then you can use option -1 to visualize isosurface of the grid data, or use option 2 to export the grid data to .cub file.
jimpan 发表于 2021-5-16 15:06
你好,可以通过Multwfn计算基于其他原子电荷(如NPA)的简缩福井函数吗?
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