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All results from a given calculation for CHNHCH (1H-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-131.345144
Energy at 298.15K-131.347682
HF Energy-131.010625
Nuclear repulsion energy60.370014
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' 3338 3237        
2 A' 3058 2966        
3 A' 1657 1607        
4 A' 1367 1326        
5 A' 1019 988        
6 A' 761 738        
7 A' 567 550        
8 A" 3278 3179        
9 A" 1111 1077        
10 A" 993 963        
11 A" 691 670        
12 A" 412 400        

Unscaled Zero Point Vibrational Energy (zpe) 9125.5 cm-1
Scaled (by 0.9698) Zero Point Vibrational Energy (zpe) 8849.9 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
1.02875 0.68747 0.43217

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 -0.039 0.985 0.000
C2 -0.039 -0.516 0.650
C3 -0.039 -0.516 -0.650
H4 0.980 1.250 0.000
H5 -0.123 -0.977 1.619
H6 -0.123 -0.977 -1.619

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.63651.63651.05212.54522.5452
C21.63651.30092.13981.07562.3171
C31.63651.30092.13982.31711.0756
H41.05212.13982.13982.96552.9655
H52.54521.07562.31712.96553.2376
H62.54522.31711.07562.96553.2376

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 66.580 N1 C2 H5 138.655
N1 C3 C2 66.580 N1 C3 H6 138.655
C2 N1 C3 46.840 C2 N1 H4 103.327
C2 C3 H6 154.193 C3 N1 H4 103.327
C3 C2 H5 154.193
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability