The general format of the $rem input for Q-Chem text input files is simply as follows:
$rem rem_variable rem_option [comment] rem_variable rem_option [comment] $end
This input is not case sensitive. The following sections contain the names and options of available $rem variables for users. The format for describing each $rem variable is as follows:
REM_VARIABLE
A short description of what the variable controls
TYPE:
Defines the variable as either INTEGER, LOGICAL or STRING.
DEFAULT:
Describes Q-Chem’s internal default, if any exists.
OPTIONS:
Lists options available for the user
RECOMMENDATION:
Gives a quick recommendation.