RI-MP2 gradients


Clicked A Few Times
I am wondering, what is the status of rimp2 gradients?

http://nwchemgit.github.io/index.php/Capabilities does not mentions RI-MP2 gradients as a capability, but there is the src/rimp2_grad directory and the following input seems to work:

echo
start h2o-dat

memory global 40 mb stack 23 mb heap 5 mb

geometry units au
 O 0       0        0
 H 0       1.430   -1.107
 H 0      -1.430   -1.107
end

basis
  O library cc-pvdz
  H library cc-pvdz
end

basis "ri-mp2 basis"
  O library cc-pvdz-ri
  H library cc-pvdz-ri
end

scf
 rohf
 singlet
end

task rimp2 optimize

Forum Vet
Michael
The RI-MP2 gradient module has never been fully tested


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