***, HCN <--> NHC Transition State Optimization and Frequencies

rcn=1.18 ang
rnh=1.40 ang
alpha=55 degree

basis=vtz

geometry={
          C
          N,1,rcn
          H,2,rnh,1,alpha}

hf
ccsd(t)
optg,numerical,root=2,hessproc=runmp2  !Transition state optimization for ccsd(t)
                                       !using mp2 hessian
frequencies                  !CCSD(T) frequencies (using numerical second derivatives)

runmp2={hf;mp2}    !procedure definition
---