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

using model chemistry: MP4=FULL/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP4=FULL/3-21G
 hartrees
Energy at 0K-131.402936
Energy at 298.15K-131.405852
HF Energy-131.060832
Nuclear repulsion energy61.438788
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 MP4=FULL/3-21G
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' 3227 3158        
2 A' 3154 3087        
3 A' 1559 1526        
4 A' 1448 1417        
5 A' 1181 1156        
6 A' 1008 986        
7 A' 921 901        
8 A' 566 554        
9 A" 3265 3196        
10 A" 1099 1075        
11 A" 953 932        
12 A" 767 751        

Unscaled Zero Point Vibrational Energy (zpe) 9572.4 cm-1
Scaled (by 0.9788) Zero Point Vibrational Energy (zpe) 9369.5 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 MP4=FULL/3-21G
ABC
1.13017 0.67426 0.46299

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.910 -0.151 0.000
C2 0.000 0.771 0.000
C3 0.699 -0.571 0.000
H4 0.072 1.849 0.000
H5 1.054 -0.995 0.933
H6 1.054 -0.995 -0.933

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.29551.66352.22772.33292.3329
C21.29551.51341.08032.25852.2585
C31.66351.51342.50021.08431.0843
H42.22771.08032.50023.15033.1503
H52.33292.25851.08433.15031.8655
H62.33292.25851.08433.15031.8655

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 72.158 N1 C2 H4 139.154
N1 C3 C2 47.842 N1 C3 H5 114.560
N1 C3 H6 114.560 C2 N1 C3 60.000
C2 C3 N1 47.842 C2 C3 H5 119.864
C2 C3 H6 119.864 C3 C2 H4 148.688
H5 C3 H6 118.683
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability