%chk=HNCNH_OptFreq_Ehigh.chk
%mem=4096MB
%nprocshared=8
#p opt freq b3lyp/6-311++g(d,p)

Title Card Required

0 1
 C                 -1.82866794   -0.68521651   -0.04571820
 N                 -1.86537782    0.65094047    0.00699038
 N                 -1.79196375   -2.02137361   -0.09842780
 H                 -0.92001586   -2.50173305   -0.00376160
 H                 -1.02086676    1.16943251    0.14103170
 
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%chk=HNCNH_OptFreq_Ehigh.chk
%nosave
%mem=4096MB
%nprocshared=8
#p CCSD(T)/6-311++G(d,p) Geom=AllCheck