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For questions about matter modeling software.

39 votes
Accepted

Why do we have so many DFT codes (softwares)? Are they redundant?

A great example of a software package that was developed to make reading and improving the code is OpenMM. … Historically scientific software was written in Fortran. Then people started using C/C++. Nowadays people are even using python! …
Cody Aldaz's user avatar
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6 votes

Is there any software that is optimized specifically for QM/MM?

TeraChem QM/MM is not computationally more intensive than regular QM. In mechanical embedding the MM region is essentially free because it's just simple harmonic oscillators. In electrostatic embeddi …
Cody Aldaz's user avatar
  • 8,025
13 votes

What is the most user friendly software for frequency visualization rendering?

VMD Normal Mode Wizard If you're goal is to create high quality visualizations of vibrations I recommend VMD. It's highly customizable in terms of colors, resolution, and representation. The setup how …
Cody Aldaz's user avatar
  • 8,025
15 votes

What software will allow me to combine two images?

Adobe Dimension Adobe dimension is the premier paid software for 3-dimensional design. It can read in STL files and give them a texture, and incorporate the light source from the background light. …
Cody Aldaz's user avatar
  • 8,025
5 votes
Accepted

The number of long-range interaction pairs in Tinker

The charge-charge interactions are only including things which aren't "bonded", this includes angles, and sometimes 1,4 Torsions. This is because the electrostatic interaction is already included in t …
Cody Aldaz's user avatar
  • 8,025
14 votes

What software is needed in chemoinformatics or materials modeling, that a solo programmer co...

I found this list of curated cheminformatics software you can peruse. …
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8 votes

How do I extract a molecular structure from a CIF file?

If you're not tethered to Avogadro You can use Mercury to change the system size by going to calculate, packing, and adjusting the cell size.
Cody Aldaz's user avatar
  • 8,025
12 votes

What software is available to do molecular dynamics on Windows?

OpenMM OpenMM is a highly efficient molecular dynamics package which can run via Python. Therefore, any way you normally run python can work. For example, via a Jupyter (Ipython) notebook, via a pytho …
Cody Aldaz's user avatar
  • 8,025
6 votes
Accepted

Create an image from scratch with the vectors that represent the Berry phase for parallel tr...

The figure you are showing can be made in Adobe Illustrator or Gimp I've recreated a crude rendition (very quickly) using adobe illustrator The steps to get this far are: create a sphere cut the sph …
Cody Aldaz's user avatar
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5 votes
Accepted

Defining coordinates using Vector3

In pdynamo 3.0.9 A vector3 can be defined by importing from Geometry module. For example, center = Vector3.Null ( ) It looks like a vector3 is just 3 element vector. Not really sure but here is wh …
Cody Aldaz's user avatar
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14 votes

Is there a free package with robust CASSCF functionality?

BAGEL The code is available through GitHub[1] and has been described in WIRES.[2] The main advantages of BAGEL is that it has better memory and parallelization than MOLPRO. For example, MOLPRO (not F …
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