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

using model chemistry: QCISD(T)/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 QCISD(T)/6-311+G(3df,2p)
 hartrees
Energy at 0K-132.449185
Energy at 298.15K-132.452214
HF Energy-131.883187
Nuclear repulsion energy63.528700
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)/6-311+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' 3225 3076        
2 A' 3112 2968        
3 A' 1679 1601        
4 A' 1512 1442        
5 A' 1303 1242        
6 A' 1049 1000        
7 A' 999 953        
8 A' 676 645        
9 A" 3206 3058        
10 A" 1109 1058        
11 A" 984 938        
12 A" 773 737        

Unscaled Zero Point Vibrational Energy (zpe) 9813.0 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 9358.6 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)/6-311+G(3df,2p)
ABC
1.18022 0.74078 0.50155

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.868 -0.170 0.000
C2 0.000 0.748 0.000
C3 0.660 -0.534 0.000
H4 0.037 1.828 0.000
H5 1.040 -0.960 0.922
H6 1.040 -0.960 -0.922

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.26291.57082.19372.26172.2617
C21.26291.44171.08152.20152.2015
C31.57081.44172.44341.08441.0844
H42.19371.08152.44343.10323.1032
H52.26172.20151.08443.10321.8445
H62.26172.20151.08443.10321.8445

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 70.657 N1 C2 H4 138.551
N1 C3 C2 49.343 N1 C3 H5 115.593
N1 C3 H6 115.593 C2 N1 C3 60.000
C2 C3 N1 49.343 C2 C3 H5 120.610
C2 C3 H6 120.610 C3 C2 H4 150.792
H5 C3 H6 116.521
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability