molecule methanol_methanol {
0 1
    O           -1.383663287070     0.330487198990    -0.070286539649
    H           -0.446031931988     0.283144690036    -0.299256525869
    C           -1.958834684481    -0.927858622384    -0.359911956249
    H           -3.007438203641    -0.876651694770    -0.086170155947
    H           -1.891479018410    -1.172743912960    -1.419878128462
    H           -1.493190241755    -1.730877235053     0.212158887473
--
0 1
    O            1.403713359029     0.168438783296    -0.421328940470
    H            1.840906797155     0.800169189432    -0.996955735221
    C            1.858125089390     0.383202385221     0.914261917038
    H            1.310555276180    -0.312220042281     1.538234897627
    H            2.922603037214     0.181006094590     1.003977022389
    H            1.644996988833     1.394984017872     1.249634150123
}

set basis aug-cc-pVTZ
set freeze_core true
set guess sad
set scf_type df
set memory 50000mb

sapt_energy = energy('sapt2+(3)dmp2', molecule=methanol_methanol)