#n B3LYP/6-31+G(d) Opt=(TS,ModRedun)

 CH3CL and F-  SN2 reaction opt of initial structure guess

-1 1
C         -2.66800        3.00189        0.00000
Cl        -1.59800        3.00189        0.00000
H         -3.02466        3.51292       -0.86979
H         -3.02466        3.49963        0.87746
H         -3.02467        1.99311       -0.00767
F         -4.48858        3.01637       -0.80324

1 6 F