%chk=TS_Iso_180
%nproc=24
%mem=50gb
#p m062x 6-311g(d) opt=(ReadFC,ts,noeigentest,maxcycles=200,VeryTight) freq guess=read iop(1/152=200)

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0 1
C     0.689083   -1.213984   -0.116236
C    -0.592366   -0.595088   -0.477272
C     1.535852    0.021254    0.281463
H     1.213669   -1.639493   -0.974909
H     0.612970   -1.986349    0.650291
C    -0.481223    0.873977   -0.420605
C     0.787715    1.162804    0.182263
C    -1.575686   -0.219944    0.433432
H    -1.537310   -0.533732    1.475784
H    -2.486102    0.274000    0.116776
H    -1.128615    1.550487   -0.969522
H     1.145133    2.160972    0.403316