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

using model chemistry: PBE1PBE/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 PBE1PBE/3-21G
 hartrees
Energy at 0K-131.709303
Energy at 298.15K-131.712054
HF Energy-131.709303
Nuclear repulsion energy61.670411
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 PBE1PBE/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' 3408 3273 4.03      
2 A' 3147 3023 45.17      
3 A' 1768 1698 3.67      
4 A' 1412 1357 17.13      
5 A' 1020 979 4.01      
6 A' 841 808 12.05      
7 A' 642 616 106.58      
8 A" 3342 3209 15.20      
9 A" 1157 1111 36.44      
10 A" 982 943 17.50      
11 A" 816 784 5.93      
12 A" 515 495 4.00      

Unscaled Zero Point Vibrational Energy (zpe) 9524.8 cm-1
Scaled (by 0.9604) Zero Point Vibrational Energy (zpe) 9147.7 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 PBE1PBE/3-21G
ABC
1.05018 0.73596 0.45432

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.038 0.948 0.000
C2 -0.038 -0.499 0.642
C3 -0.038 -0.499 -0.642
H4 0.969 1.236 0.000
H5 -0.122 -0.941 1.613
H6 -0.122 -0.941 -1.613

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.58331.58331.04792.48552.4855
C21.58331.28332.10671.07042.2991
C31.58331.28332.10672.29911.0704
H41.04792.10672.10672.92102.9210
H52.48551.07042.29912.92103.2262
H62.48552.29911.07042.92103.2262

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 66.093 N1 C2 H5 138.158
N1 C3 C2 66.093 N1 C3 H6 138.158
C2 N1 C3 47.815 C2 N1 H4 104.543
C2 C3 H6 155.168 C3 N1 H4 104.543
C3 C2 H5 155.168
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.494      
2 C -0.132      
3 C -0.132      
4 H 0.274      
5 H 0.242      
6 H 0.242      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.409 -1.873 0.000 2.343
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.624 2.409 0.000
y 2.409 -19.202 0.000
z 0.000 0.000 -14.309
Traceless
 xyz
x -1.869 2.409 0.000
y 2.409 -2.736 0.000
z 0.000 0.000 4.605
Polar
3z2-r29.209
x2-y20.578
xy2.409
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.904 0.453 0.000
y 0.453 3.436 0.000
z 0.000 0.000 4.210


<r2> (average value of r2) Å2
<r2> 34.579
(<r2>)1/2 5.880