%mem=102GB
%nprocshared=24
%oldchk=bs1_i/ts1-acid-add-c1-BS1_I-ircF-opt-t1.chk
#P B3LYP/GenECP OPT=(ReadFC,MaxCycle=100) Freq=NoRaman SCRF=(PCM,Solvent=Dichloromethane) EmpiricalDispersion=GD3BJ Geom=Check

Opt using higher basis set geom as starting point

1 1

H C O 0
6-31G*
****
Rh I 0
SDD
****

Rh I 0
SDD


