# C.1 Q-Chem Text Input Summary

• Users are able to enter input sections in any order; see Table 3.1 for a complete list of input sections.

• Each input section must be terminated with $end. • Not all input sections are required, but$rem and \$molecule are compulsory.

• The entire Q-Chem input is case-insensitive.

• Multiple jobs are separated by the string @@@ on a single line.