%mem=16000MB
%nprocshared=12
#p opt=(calcfc,ts,maxstep=15,noeigentest) freq b3lyp/6-311+g(d)
scrf=(smd,solvent=water) empiricaldispersion=gd3
scf=(maxcyc=1000,conver=8,nosym)

ch3cf3-seh-ts_6311+Gd

-1 1
 C                  0.14715500   -0.01451500   -0.01174200
 H                  0.04057800   -1.08585300    0.00357000
 H                  0.03888400    0.50292700   -0.94838700
 H                  0.03281300    0.52985400    0.90882000
 H                  2.62909400    1.43691000   -0.00296800
 F                 -2.81650300   -0.56656000    1.13407500
 F                 -2.86139200   -0.68561600   -1.05347100
 F                 -2.81738100    1.26887900   -0.06268700
 C                 -2.20777500   -0.00218900   -0.00648600
 Se                 2.53176000   -0.04217500   -0.00038000

