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All results from a given calculation for CHNCH2 (2H-Azirine)

using model chemistry: QCISD/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/6-31G(2df,p)
 hartrees
Energy at 0K-132.370021
Energy at 298.15K-132.373097
HF Energy-131.852858
Nuclear repulsion energy63.716095
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 QCISD/6-31G(2df,p)
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' 3291 3117 0.35      
2 A' 3158 2992 15.78      
3 A' 1729 1638 9.14      
4 A' 1533 1453 0.01      
5 A' 1339 1269 8.25      
6 A' 1073 1017 0.04      
7 A' 1027 973 47.78      
8 A' 720 682 11.24      
9 A" 3250 3079 16.58      
10 A" 1130 1070 1.93      
11 A" 1005 952 0.17      
12 A" 812 769 12.93      

Unscaled Zero Point Vibrational Energy (zpe) 10032.5 cm-1
Scaled (by 0.9474) Zero Point Vibrational Energy (zpe) 9504.8 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 QCISD/6-31G(2df,p)
ABC
1.18480 0.74670 0.50491

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.865 -0.170 0.000
C2 0.000 0.745 0.000
C3 0.655 -0.532 0.000
H4 0.042 1.824 0.000
H5 1.041 -0.956 0.921
H6 1.041 -0.956 -0.921

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.26001.56322.19082.25852.2585
C21.26001.43581.07922.19722.1972
C31.56321.43582.43461.08471.0847
H42.19081.07922.43463.09453.0945
H52.25852.19721.08473.09451.8413
H62.25852.19721.08473.09451.8413

picture of 2H-Azirine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 70.536 N1 C2 H4 138.833
N1 C3 C2 49.464 N1 C3 H5 115.889
N1 C3 H6 115.889 C2 N1 C3 60.000
C2 C3 N1 49.464 C2 C3 H5 120.688
C2 C3 H6 120.688 C3 C2 H4 150.630
H5 C3 H6 116.163
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability