Normally, MOPAC reads data from the data-file supplied. When the name
of the data set cannot be changed, the data set to be used can be provided in
the fixed data set by use of DATA="<text>". Thus if the name
of the fixed data set is "input.dat", so the only job that can be run is:
and the job that is to be run is the data set "toluene.mop" in folder "F:\my mopac jobs" then the file input.dat would contain the single line:
DATA="F:\my mopac jobs\toluene.dat"
When the MOPAC job is run, input.dat would be read in, then because 'DATA="F:\my mopac jobs\toluene.dat"' was present, the file toluene.dat would be read in. The results would be put into files of the type input.<suffix>.