memory 60 Gb

molecule water_dimer {
 0 1
 O                 -0.003244    1.511274    0.000000
 H                  0.070125    0.540684    0.000000
 H                  0.900899    1.845934    0.000000
 --
 0 1
 O                 -0.003244   -1.375885    0.000000
 H                 -0.459556   -1.734864    0.771839
 H                 -0.459556   -1.734864   -0.771839

 units angstrom
 no_reorient
 symmetry c1
}

set globals {
basis aug-cc-pVTZ
}

energy('sapt2+(3)dmp2')