Example of basis format (6-31G basis):
**** H 1 0 S 4 2 18.73113700 2.82539370 0.64012170 0.16127780 0.03349460 0.00000000 0.23472695 0.00000000 0.81375733 0.00000000 0.00000000 1.00000000 **** Li 3 1 S 10 3 642.41892000 96.79851500 22.09112100 6.20107030 1.93511770 0.63673580 2.32491840 0.63243060 0.07905340 0.03596200 0.00214260 0.00000000 0.00000000 ...
To use your own basis that is not included in the bdf-pkg/basis_library, you can create a file XXX containing your basis in the same directory of the input and run script , and then you can just specify the basis in COMPASS like the normal basis by the name XXX.