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

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-131.368550
Energy at 298.15K-131.371500
HF Energy-131.061602
Nuclear repulsion energy61.630776
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 MP2/3-21G*
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' 3289 3129 1.89      
2 A' 3214 3057 4.04      
3 A' 1584 1507 1.43      
4 A' 1442 1372 3.99      
5 A' 1195 1137 18.68      
6 A' 1032 982 21.59      
7 A' 936 891 33.65      
8 A' 583 554 1.60      
9 A" 3329 3167 11.24      
10 A" 1124 1070 1.16      
11 A" 977 929 0.59      
12 A" 796 757 26.32      

Unscaled Zero Point Vibrational Energy (zpe) 9750.1 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 9275.3 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 MP2/3-21G*
ABC
1.13048 0.68205 0.46643

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.906 -0.156 0.000
C2 0.000 0.771 0.000
C3 0.697 -0.567 0.000
H4 0.071 1.844 0.000
H5 1.047 -0.989 0.930
H6 1.047 -0.989 -0.930

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.29581.65482.22552.31862.3186
C21.29581.50771.07562.24892.2489
C31.65481.50772.49021.07991.0799
H42.22551.07562.49023.13733.1373
H52.31862.24891.07993.13731.8599
H62.31862.24891.07993.13731.8599

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 71.899 N1 C2 H4 139.406
N1 C3 C2 48.101 N1 C3 H5 114.308
N1 C3 H6 114.308 C2 N1 C3 60.000
C2 C3 N1 48.101 C2 C3 H5 119.796
C2 C3 H6 119.796 C3 C2 H4 148.695
H5 C3 H6 118.892
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability