How to simulate Molecular dynamics

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Discussion Overview

The discussion revolves around the simulation of molecular dynamics (MD), specifically focusing on ab initio quantum mechanical methods, including the use of pseudopotentials and plane wave basis sets. Participants explore the potential applications of MD in research, particularly in the context of a diploma thesis, and inquire about specific molecular systems and computational methods.

Discussion Character

  • Exploratory, Technical explanation, Homework-related, Debate/contested

Main Points Raised

  • One participant proposes to simulate MD using ultrasoft Vanderbilt pseudopotentials or the projector augmented wave method.
  • Another participant expresses interest in using MD for their diploma thesis and asks for clarification on Vanderbilt pseudopotentials and PAW.
  • There is a request to simulate molecular self-assembly layers or specific aromatic hydrocarbon molecules on a graphite surface.
  • A question is raised about finding normal coordinates of normal modes from MD using the Green's function matrix method.
  • One participant mentions starting to work with VASP for density functional calculations and expresses a desire to learn more about the program.
  • There is an offer for collaboration, including sharing measurements and DFT calculations, with a request for email communication.
  • A later reply questions whether molecular dynamics simulations can also be performed based on force field calculations.

Areas of Agreement / Disagreement

Participants express interest in collaborating on MD simulations, but there is no consensus on the specific methodologies or capabilities regarding force field calculations and the use of DFT in their projects.

Contextual Notes

Some participants mention specific computational tools and methods, but there are unresolved questions about the feasibility of certain simulations and the details of the proposed collaborations.

Who May Find This Useful

Researchers and students interested in molecular dynamics simulations, particularly those focusing on quantum mechanical methods and applications in materials science or chemistry.

itcon
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I have a possibility to simulate Molecular dynamics (MD). I want to find someone who need it. I propose to simulate ab initio quantum mechanical molecular dynamics (MD) using pseudopotentials and a plane wave basis set. The interaction between ions and electrons is described using ultrasoft Vanderbilt pseudopotentials (US-PP) or the projector augmented wave method (PAW).
 
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Yes, I could need molecular dynamics in my "Diploma" thesis. What are Vanderbilt pseudopotentials and PAW? Can you simulate a molecular self assembly layer or single molecules consisting of several aromatic hydrocarbon molecules like Quinacridone, Indanthronor Acridone on a graphite surface?
 
Is it possible to find normal coordinates of normal modes from MD..using GF matrix method..?
 
Tanja said:
Yes, I could need molecular dynamics in my "Diploma" thesis. What are Vanderbilt pseudopotentials and PAW? Can you simulate a molecular self assembly layer or single molecules consisting of several aromatic hydrocarbon molecules like Quinacridone, Indanthronor Acridone on a graphite surface?

I can. Tanja, can you send me more information about Quinacridone, Indanthronor Acridone?
 
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I can't believe it, that would be great. I started today working with VASP (Density functional calculation), but I guess it will be a long way to learn working and understanding the program. Force field calculations be a nice add on.http://en.wikipedia.org/wiki/Quinacridone
http://en.wikipedia.org/wiki/Indanthrene_blue_RS
http://en.wikipedia.org/wiki/Acridine

Can you give me your email address? I'd like to send you more information.

We can kind of cooperate and you can use my measurements and my hopefully successful DFT calculation in a few months, if you like. (It will be unnecessary to mention: Anyway, of coarse you will be named as the author of your calculations.)
 
ab initio quantum mechanical molecular dynamics simulation

Tanja said:
I can't believe it, that would be great. I started today working with VASP (Density functional calculation), but I guess it will be a long way to learn working and understanding the program. Force field calculations be a nice add on.


http://en.wikipedia.org/wiki/Quinacridone
http://en.wikipedia.org/wiki/Indanthrene_blue_RS
http://en.wikipedia.org/wiki/Acridine

Can you give me your email address? I'd like to send you more information.

We can kind of cooperate and you can use my measurements and my hopefully successful DFT calculation in a few months, if you like. (It will be unnecessary to mention: Anyway, of coarse you will be named as the author of your calculations.)

Tanja, thank you very much for your proposal. This is very kind of you.
My e-mail: itcon-rs@yandex.ru
Feel free to e-mail me.
 
Sorry, I've just seen that you are working with DFT. Is it VASP you are using? Can you also do Molecular Dynamics Simulation based on force field calculations?
 

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