Gaussian — 16w ((link))

: Capable of optimizing molecular geometries and calculating thermochemical characteristics, vibrational frequencies (IR/Raman), NMR, and excited state properties. Solvation Modeling

had been running for 113 hours.

The software is available in two primary editions based on your hardware: gaussian 16w

Gaussian 16W is available in both 64-bit and 32-bit versions, with significant performance differences between them: Requirement 64-bit Version (Recommended) 32-bit Version Windows 10/11 , Server 2019+ Windows 7/8/10/11 Memory (RAM) >2 GB (No upper limit) Limited to 2 GB Disk Space 1.5 GB (Storage) + 2 GB (Scratch) 1.7 GB (Storage) + 500 MB (Scratch) Processor Any AMD64 or Intel64 (No core limit) Limited to 4 cores : Capable of optimizing molecular geometries and calculating