ReadIsotopes This option allows you to specify alternatives to the default temperature, pressure, frequency scale factor and/or isotopes—298.15 K, 1 atmosphere, no scaling, and the most abundant isotopes (respectively). It is useful when you want to rerun an...
Specifying Generalized Internal Coordinates
This section discusses specifying generalized internal coordinates (GICs) in Gaussian input files. GICs have many potential uses: defining additional coordinates whose values are reported during geometry optimizations, freezing various structural parameters during the...Gaussian Capabilities
This section lists the methods which are available in Gaussian, along with the job types for which each one may be used.