Gaussian 03 Online Manual
Last update: 2 October 2006


The route section of a Gaussian job is initiated by a pound sign (#) as the first non-blank character of a line. The remainder of the section is in free-field format. For most jobs, all of the information can be placed on this first line, but overflow to other lines (which may but need not begin with a # symbol) is permissible. The route section must be terminated by a blank line.

If no keywords are present in the route section, the calculation defaults to HF/STO-3G SP.


Normal print level; this is the default.

Additional output is generated. This includes messages at the beginning and end of each link giving assorted machine-dependent information (including execution timing data), as well as covergence information in the SCF.

Terse output: output is reduced to essential information and results.