return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CHNHCH (1H-Azirine)

using model chemistry: CISD/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CISD/6-311+G(3df,2p)
 hartrees
Energy at 0K-132.305490
Energy at 298.15K-132.308384
HF Energy-131.828273
Nuclear repulsion energy63.885376
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at CISD/6-311+G(3df,2p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3516 3241 6.21      
2 A' 3457 3187 2.94      
3 A' 1847 1703 10.42      
4 A' 1414 1303 15.31      
5 A' 1136 1047 12.15      
6 A' 953 879 29.84      
7 A' 615 567 82.69      
8 A" 3393 3128 21.56      
9 A" 1210 1115 42.02      
10 A" 1042 961 16.73      
11 A" 822 758 6.64      
12 A" 659 608 3.54      

Unscaled Zero Point Vibrational Energy (zpe) 10032.3 cm-1
Scaled (by 0.9218) Zero Point Vibrational Energy (zpe) 9247.8 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at CISD/6-311+G(3df,2p)
ABC
1.07859 0.82896 0.49103

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.036 0.885 0.000
C2 -0.036 -0.472 0.632
C3 -0.036 -0.472 -0.632
H4 0.916 1.234 0.000
H5 -0.120 -0.885 1.611
H6 -0.120 -0.885 -1.611

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.49701.49701.01312.39502.3950
C21.49701.26382.05281.06582.2819
C31.49701.26382.05282.28191.0658
H41.01312.05282.05282.85622.8562
H52.39501.06582.28192.85623.2213
H62.39502.28191.06582.85623.2213

picture of 1H-Azirine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 65.032 N1 C2 H5 137.668
N1 C3 C2 65.032 N1 C3 H6 137.668
C2 N1 C3 49.936 C2 N1 H4 108.180
C2 C3 H6 156.680 C3 N1 H4 108.180
C3 C2 H5 156.680
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability