The "W" designation indicates that this version is built specifically to run on Microsoft Windows operating systems. Unlike older versions that might have required command-line interfaces or Unix-based terminals, Gaussian 16W integrates seamlessly into the Windows desktop environment, offering a Graphical User Interface (GUI) that simplifies the complex process of setting up quantum chemical calculations.
B3LYP/6-31G(d) geometry optimization of a 100-atom organic molecule.
Although Gaussian 16W configures most paths automatically, it's wise to set: gaussian 16w
: Computes NMR chemical shifts, spin-spin coupling constants, and magnetic properties like G tensors. Excited States : Models electronic transitions using Time-Dependent DFT (TD-DFT) , SAC-CI, and CASSCF. Environmental Effects : Includes the Polarized Continuum Model (PCM) for modeling molecules in solution. Gaussian.com Windows-Specific Interface Features
Gaussian 16W takes advantage of modern hardware architectures. With support for GPU acceleration (specifically via NVIDIA GPUs), certain calculations—particularly DFT and Hartree-Fock—can see significant speed-ups compared to CPU-only execution. This is critical for researchers looking to screen libraries of molecules or perform high-accuracy frequency calculations in a reasonable timeframe. The "W" designation indicates that this version is
| Component | Specification | |-----------|----------------| | OS | Windows 10/11 Pro or Server 2019+ | | CPU | Intel Xeon or AMD Ryzen (8+ cores) | | RAM | 64 GB minimum; 256 GB recommended | | Storage | 500 GB NVMe SSD (scratch space) | | GPU | Not used for computation; only for OpenGL graphics |
0 1 O H 1 0.96 H 1 0.96 2 104.5
Gaussian 16W is the Windows-based version of the Gaussian 16 electronic structure modeling software. It provides a full implementation of the Gaussian 16 suite, featuring a specialized graphical user interface for managing chemical modeling jobs on Windows PCs. Gaussian.com Core Modeling & Scientific Features
Exotic species flags differentiate locally introduced species from native species.
Naturalized: Exotic population is self-sustaining, breeding in the wild, persisting for many years, and not maintained through ongoing releases (including vagrants from Naturalized populations). These count in official eBird totals and, where applicable, have been accepted by regional bird records committee(s).
Provisional: Either: 1) member of exotic population that is breeding in the wild, self-propagating, and has persisted for multiple years, but not yet Naturalized; 2) rarity of uncertain provenance, with natural vagrancy or captive provenance both considered plausible. When applicable, eBird generally defers to bird records committees for records formally considered to be of "uncertain provenance". Provisional species count in official eBird totals.
Escapee: Exotic species known or suspected to be escaped or released, including those that have bred but don't yet fulfill the criteria for Provisional. Escapee exotics do not count in official eBird totals.