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

using model chemistry: QCISD/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/6-31+G**
 hartrees
Energy at 0K-132.310201
Energy at 298.15K-132.313261
HF Energy-131.845926
Nuclear repulsion energy63.509146
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 QCISD/6-31+G**
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' 3307 3126 0.74      
2 A' 3185 3011 19.47      
3 A' 1734 1639 11.31      
4 A' 1562 1477 0.06      
5 A' 1341 1268 7.91      
6 A' 1084 1025 0.66      
7 A' 1034 978 51.24      
8 A' 696 658 11.21      
9 A" 3278 3099 20.50      
10 A" 1139 1077 1.91      
11 A" 1001 946 0.37      
12 A" 787 744 19.70      

Unscaled Zero Point Vibrational Energy (zpe) 10073.8 cm-1
Scaled (by 0.9454) Zero Point Vibrational Energy (zpe) 9523.8 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 QCISD/6-31+G**
ABC
1.17596 0.74242 0.50120

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.868 -0.172 0.000
C2 0.000 0.749 0.000
C3 0.659 -0.533 0.000
H4 0.040 1.827 0.000
H5 1.042 -0.959 0.919
H6 1.042 -0.959 -0.919

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.26631.56942.19642.26102.2610
C21.26631.44191.07872.20212.2021
C31.56941.44192.44021.08301.0830
H42.19641.07872.44023.10033.1003
H52.26102.20211.08303.10031.8385
H62.26102.20211.08303.10031.8385

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 70.489 N1 C2 H4 138.853
N1 C3 C2 49.511 N1 C3 H5 115.739
N1 C3 H6 115.739 C2 N1 C3 60.000
C2 C3 N1 49.511 C2 C3 H5 120.753
C2 C3 H6 120.753 C3 C2 H4 150.658
H5 C3 H6 116.161
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability