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

using model chemistry: QCISD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/6-31G*
 hartrees
Energy at 0K-132.217264
Energy at 298.15K-132.219974
HF Energy-131.772669
Nuclear repulsion energy62.927300
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/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3389 3227 1.27      
2 A' 3301 3144 37.74      
3 A' 1788 1703 4.50      
4 A' 1415 1348 16.29      
5 A' 1109 1056 2.44      
6 A' 911 867 20.41      
7 A' 541 515 74.11      
8 A" 3331 3172 7.01      
9 A" 1190 1134 39.74      
10 A" 989 942 15.13      
11 A" 692 659 4.77      
12 A" 581 553 3.97      

Unscaled Zero Point Vibrational Energy (zpe) 9618.3 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 9159.5 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/6-31G*
ABC
1.04660 0.80373 0.47691

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.036 0.901 0.000
C2 -0.036 -0.478 0.642
C3 -0.036 -0.478 -0.642
H4 0.942 1.234 0.000
H5 -0.133 -0.899 1.629
H6 -0.133 -0.899 -1.629

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.52111.52111.03272.42972.4297
C21.52111.28382.07361.07792.3120
C31.52111.28382.07362.31201.0779
H41.03272.07362.07362.89172.8917
H52.42971.07792.31202.89173.2588
H62.42972.31201.07792.89173.2588

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 65.039 N1 C2 H5 137.776
N1 C3 C2 65.039 N1 C3 H6 137.776
C2 N1 C3 49.922 C2 N1 H4 107.026
C2 C3 H6 156.374 C3 N1 H4 107.026
C3 C2 H5 156.374
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability