%mem=10000MB
%nprocshared=12
#p opt freq b3lyp/6-311+g(d) scrf=(smd,solvent=dichloromethane)
empiricaldispersion=gd3 scf=(maxcyc=100,conver=8,nosymm)

cf3

-1 1
 C                 -3.37531476   -0.64231737    0.00000000
 F                 -2.92530697   -0.00592713    1.10227059
 F                 -2.92533021   -1.91511504    0.00000000
 F                 -4.72531476   -0.64230074    0.00000000

