Can anyone help me to run a geometry optimization and frequency calculation using B2PLYP-D3 functional including the DFT-D3 dispersion correction? I went through Gaussian manual, however, it was not very clear to me.
%NProcshared=4
%Mem=4gb
%chk=fohsdft3
# B3PLYP/aug-cc-pVDZ opt freq scf=tight
Input file taken from fohsdft
0 1
O -3.46278 2.54045 0.
H -2.50278 2.54045 0.
H -3.78324 3.44539 0.
We have the Gaussian 09 Revision C.01 version.