Gaussian 16 Revision C.01 [top] -

For technical support, visit the official Gaussian website or consult your local HPC administrator.

: Introduced GauOpen support for raw binary files using 4- or 8-byte integers . It also added information regarding ONIOM layers and optimization results to matrix element files .

Revision C.01 introduced several subtle changes to default behaviors that caught many users off guard when upgrading from Revision B.01.

Users upgrading to Revision C.01 from older versions (like Gaussian 09) will still benefit from the core Gaussian 16 advancements that this revision polishes: gaussian 16 revision c.01

Revision C.01 brings major analytical power to excited state investigations. The inclusion of analytic second derivatives for Time-Dependent Density Functional Theory (TD-DFT) enables the prediction of vibrational frequencies, IR and Raman spectra for excited states, as well as performing transition state optimizations and IRC (Intrinsic Reaction Coordinate) calculations. Furthermore, analytic gradients for EOMCC (Equation-of-Motion Coupled Cluster) allow for geometry optimizations of excited states with high-level correlation methods.

Corrected minor discrepancies in anharmonic frequency calculations for large asymmetric top molecules. 3. Core Capabilities and Supported Methods

The revision includes improved default settings for the SCF (Self-Consistent Field) procedure, helping difficult systems converge more reliably. For technical support, visit the official Gaussian website

Revision C.01 ensures that calculations are more reliable, thread-safe, and optimized for modern high-performance computing (HPC) architectures. 2. Key Enhancements and Methodological Improvements

Scientific software is only as good as its reliability. Revision C.01 addresses several edge-case bugs found in previous versions (A.03 and B.01):

Output: Gaussian 16: Rev C.01

Determining the minimum energy conformations of molecules, including transition states.

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Minor bugs related to the formatting of the standard orientation output, the formatting of .chk (checkpoint) files, and the generation of formatted checkpoint ( .fchk ) files have been corrected. This ensures seamless interoperability with visualization software like GaussView 6, WebMO, and Chemcraft. 3. Hardware Compatibility and Performance Optimization Revision C