Dear Experts,
I have a system with 120 atoms in it. I want to calculate the interaction energy between two groups of atoms. Each group consists of 6 atoms. Is there any way to do it in the Gaussian package?
I want to use two pair potentials acting on one atom type. In lammps it can be done using pair_style hybrid. Is their anyway to use the same in gromacs as well. I tried some options using charge...
03 April 2018 5,814 0 View
I want to simulate water and THF in various compositions to see the phase diagram. I started simulating the system by considering water - SPC/E model and THF - TraPPE-UA model using gromacs...
02 March 2018 3,894 0 View
02 March 2018 9,342 0 View
I want to use OPLS/UA force field for methyl cyclohexane in gromcas. Can anyone tell me how to get itp file for it? I tried with acpype but it is giving only AA itp file. I have also tried with...
10 November 2017 2,563 3 View
Hi, I'm currently working on a project where I need to plot the atom-projected band structure using GPAW. I've been able to calculate the band structure for my material, but I'm having trouble...
07 August 2024 269 3 View
I'm trying to perform a frequency calculation using Gaussian via MOBAXterm. The output shows no errors, however, there's no frequency as a result on gausview. The option "vibrations" is not...
31 July 2024 631 4 View
PeptiCloud (www.pepticloud.com) is a bioinformatic platform that allows researchers to organize and share their data for their projects as well as collaborate with others in one place. Through...
28 July 2024 4,762 2 View
How can we calculate the percentage of configuration interaction (CI) in the UV output data of the Gaussian program? for example: Excited State 17: Singlet-A 5.1359 eV 241.41 nm...
28 July 2024 9,165 2 View
Hello! I am trying to calculate the sumatriptan molecule, but it has been counting for five days and it does not stop. It seems to me that it is too long and I am doing something wrong. Please...
25 July 2024 3,364 5 View
Dear Researchers, My question is associated with the "MDCI" method in Orca. Please let me clarify my question using a simple example: Suppose we are going to perform CBS extrapolation using "!...
21 July 2024 1,632 0 View
> library(meta) Error: package or namespace load failed for ‘meta’ in loadNamespace(i, c(lib.loc, .libPaths()), versionCheck = vI[[i]]): there is no package called ‘numDeriv’
18 July 2024 3,536 0 View
Hi everyone, I'm working on calculating the activation energies for some redox reactions using Gaussian, Here are the reactions I'm interesting: Py•−+ 3O2 → Py + 3O2•− Py•− + 1O2 → Py + 1O2•− Is...
18 July 2024 4,418 3 View
I'm trying to study the effects of introducing vacancy defects in my material. If I optimize my structure and find the lattice parameter before introducing vacancy, should I again optimize my...
18 July 2024 1,794 2 View
Using DFT/B3LYP/6-311++G
17 July 2024 7,720 1 View