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

using model chemistry: MP4/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP4/3-21G
 hartrees
Energy at 0K-131.398178
Energy at 298.15K-131.401093
HF Energy-131.060781
Nuclear repulsion energy61.429760
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 MP4/3-21G
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' 3226 3129        
2 A' 3154 3058        
3 A' 1559 1512        
4 A' 1447 1404        
5 A' 1180 1145        
6 A' 1007 977        
7 A' 920 892        
8 A' 565 548        
9 A" 3264 3166        
10 A" 1098 1065        
11 A" 952 924        
12 A" 767 743        

Unscaled Zero Point Vibrational Energy (zpe) 9569.9 cm-1
Scaled (by 0.9698) Zero Point Vibrational Energy (zpe) 9280.9 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 MP4/3-21G
ABC
1.12988 0.67403 0.46285

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.911 -0.151 0.000
C2 0.000 0.771 0.000
C3 0.699 -0.572 0.000
H4 0.072 1.849 0.000
H5 1.054 -0.996 0.933
H6 1.054 -0.996 -0.933

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.29561.66392.22802.33332.3333
C21.29561.51371.08042.25882.2588
C31.66391.51372.50051.08451.0845
H42.22801.08042.50053.15063.1506
H52.33332.25881.08453.15061.8658
H62.33332.25881.08453.15061.8658

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 72.163 N1 C2 H4 139.168
N1 C3 C2 47.837 N1 C3 H5 114.554
N1 C3 H6 114.554 C2 N1 C3 60.000
C2 C3 N1 47.837 C2 C3 H5 119.863
C2 C3 H6 119.863 C3 C2 H4 148.670
H5 C3 H6 118.689
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability