: Frequency and thermochemical analysis (Freq), including harmonic and anharmonic IR, Raman, VCD, and ROA spectra.

To run Gaussian 16 on Linux, follow these steps:

Create a dedicated directory for the software and navigate into it: sudo mkdir -p /usr/local/g16 cd /usr/local Use code with caution.

%mem=4GB %nprocshared=4 #chk=water.chk # B3LYP/6-31G(d) Opt Water Molecule Optimization 0 1 O 0.000000 0.000000 0.117790 H 0.000000 0.755453 -0.471161 H 0.000000 -0.755453 -0.471161 Use code with caution.

sudo groupadd g16 sudo chown -R root:g16 /usr/local/g16 sudo chmod -R 750 /usr/local/g16 Use code with caution. Add your authorized users to this newly created group: sudo usermod -aG g16 username Use code with caution. Step 3: Configure Environment Variables

For RHEL/Fedora:

: For modern processors, ensure you use the AVX2-optimized version for significantly better performance.

This article dives deep into installation, optimization, parallelization, troubleshooting, and best practices for environments.

Gaussian 16 is a premiere electronic structure modeling program used by chemists, biochemists, and materials scientists to simulate molecular systems. Running Gaussian 16 on Linux is the industry standard for high-performance computing (HPC) environments, offering superior performance, memory management, and stability compared to other operating systems.

Gaussian 16 depends on certain 64-bit libraries. On Ubuntu/Debian:

: Prediction of NMR shielding, spin-spin coupling constants, polarizabilities, atomic charges, and molecular orbitals. Parallelism & Performance on Linux

Change the ownership of the directory to grant appropriate permissions. For security, create a specific user group named gaussian and add valid users to it:

Environment variables not set. Re-source ~/.bashrc or add lines to ~/.bash_profile .

I can provide tailored scripts or diagnostic steps for your environment. Share public link