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

using model chemistry: QCISD(T)/6-31G*

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(T)/6-31G*
 hartrees
Energy at 0K-132.295492
Energy at 298.15K-132.298513
HF Energy-131.835214
Nuclear repulsion energy63.220617
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(T)/6-31G*
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' 3240 3109        
2 A' 3130 3002        
3 A' 1698 1629        
4 A' 1540 1478        
5 A' 1319 1265        
6 A' 1057 1014        
7 A' 1014 972        
8 A' 682 654        
9 A" 3218 3087        
10 A" 1127 1081        
11 A" 989 948        
12 A" 760 729        

Unscaled Zero Point Vibrational Energy (zpe) 9886.4 cm-1
Scaled (by 0.9593) Zero Point Vibrational Energy (zpe) 9484.1 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(T)/6-31G*
ABC
1.16442 0.73647 0.49696

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.872 -0.174 0.000
C2 0.000 0.753 0.000
C3 0.661 -0.535 0.000
H4 0.040 1.839 0.000
H5 1.047 -0.965 0.924
H6 1.047 -0.965 -0.924

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.27191.57452.20962.27242.2724
C21.27191.44721.08712.21432.2143
C31.57451.44722.45351.09061.0906
H42.20961.08712.45353.11973.1197
H52.27242.21431.09063.11971.8490
H62.27242.21431.09063.11971.8490

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 70.434 N1 C2 H4 138.871
N1 C3 C2 49.566 N1 C3 H5 115.808
N1 C3 H6 115.808 C2 N1 C3 60.000
C2 C3 N1 49.566 C2 C3 H5 120.866
C2 C3 H6 120.866 C3 C2 H4 150.695
H5 C3 H6 115.928
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability