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

using model chemistry: MP2/CEP-121G

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-121G
 hartrees
Energy at 0K-22.471147
Energy at 298.15K-22.473696
HF Energy-22.167425
Nuclear repulsion energy32.340828
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-121G
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' 3313 3233 0.18      
2 A' 3191 3114 43.02      
3 A' 1614 1575 6.81      
4 A' 1314 1283 11.36      
5 A' 1025 1001 1.92      
6 A' 795 776 21.46      
7 A' 579 565 122.40      
8 A" 3251 3173 5.68      
9 A" 1108 1081 43.70      
10 A" 966 943 18.08      
11 A" 670 654 8.02      
12 A" 406 396 3.14      

Unscaled Zero Point Vibrational Energy (zpe) 9115.8 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 8897.0 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-121G
ABC
1.00369 0.70988 0.43547

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.032 0.962 0.000
C2 -0.032 -0.511 0.660
C3 -0.032 -0.511 -0.660
H4 0.962 1.291 0.000
H5 -0.182 -0.946 1.639
H6 -0.182 -0.946 -1.639

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.61491.61491.04662.51972.5197
C21.61491.32082.16151.08092.3446
C31.61491.32082.16152.34461.0809
H41.04662.16152.16152.99952.9995
H52.51971.08092.34462.99953.2774
H62.51972.34461.08092.99953.2774

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 65.862 N1 C2 H5 137.469
N1 C3 C2 65.862 N1 C3 H6 137.469
C2 N1 C3 48.277 C2 N1 H4 106.654
C2 C3 H6 154.834 C3 N1 H4 106.654
C3 C2 H5 154.834
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability