optimization in DFT-D3

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It seems to me that it's not working. In the following code geometry and energy are the same in the presence and absence of "disp vdw 3".

start nw
charge 0
geometry   
 He      0.00000000000000   0.00000000000000  -1.40439630000000  
 He      0.00000000000000   0.00000000000000   1.40439630000000  
end 
basis spherical
 * library cc-pvtz
end 
dft 
 cgmin 
 xc m06-2x
 disp vdw 3
end 
driver 
 clear 
 TIGHT
 eprec   1e-06
 maxiter 2000
end 
task DFT optimize



Quote:Bert May 6th 11:50 am
Geometry optimizations within DFT Gaussian basis set module can be done for all DFT functionals.

dft
disp vdw 3
end

task dft optimize


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