echo
start disilane
title "disilane, Si2H6"

geometry autoz
  symmetry group d3d
  Si          0.0         0.0               1.181424
  H           0.990312   -0.990312          1.694694
end

basis "ao basis" spherical
  H  library cc-pvdz
  Si library cc-pvdz
end

basis "ri-mp2 basis" spherical
  H  library cc-pvdz-ri
  Si library cc-pvdz-ri
end

mp2
  freeze atomic
end

task rimp2 energy
task rimp2 optimize

