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All results from a given calculation for CHNHCH (1H-Azirine)

using model chemistry: MP2/CEP-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 MP2/CEP-31G
 hartrees
Energy at 0K-22.433930
Energy at 298.15K-22.436488
HF Energy-22.155802
Nuclear repulsion energy32.119842
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/CEP-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' 3351 3238 0.04      
2 A' 3282 3171 36.64      
3 A' 1633 1578 8.59      
4 A' 1310 1266 12.80      
5 A' 1013 979 2.63      
6 A' 798 771 21.25      
7 A' 566 547 136.84      
8 A" 3281 3171 5.38      
9 A" 1116 1079 38.48      
10 A" 959 926 18.89      
11 A" 695 672 5.72      
12 A" 440 425 3.16      

Unscaled Zero Point Vibrational Energy (zpe) 9221.1 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 8910.3 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/CEP-31G
ABC
0.97308 0.71072 0.42977

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.034 0.962 0.000
C2 -0.034 -0.512 0.672
C3 -0.034 -0.512 -0.672
H4 0.961 1.292 0.000
H5 -0.155 -0.943 1.663
H6 -0.155 -0.943 -1.663

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.61961.61961.04892.53162.5316
C21.61961.34392.16681.08782.3779
C31.61961.34392.16682.37791.0878
H41.04892.16682.16683.00083.0008
H52.53161.08782.37793.00083.3270
H62.53162.37791.08783.00083.3270

picture of 1H-Azirine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 65.487 N1 C2 H5 137.612
N1 C3 C2 65.487 N1 C3 H6 137.612
C2 N1 C3 49.026 C2 N1 H4 106.622
C2 C3 H6 155.716 C3 N1 H4 106.622
C3 C2 H5 155.716
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability