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

using model chemistry: HF/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 HF/3-21G*
 hartrees
Energy at 0K-131.017505
Energy at 298.15K-131.020480
HF Energy-131.017505
Nuclear repulsion energy62.585601
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 HF/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' 3581 3232 6.30      
2 A' 3490 3150 19.29      
3 A' 1885 1702 6.86      
4 A' 1484 1339 22.27      
5 A' 1092 986 0.69      
6 A' 904 816 18.51      
7 A' 765 690 131.32      
8 A" 3509 3168 23.65      
9 A" 1246 1125 46.43      
10 A" 1106 999 14.41      
11 A" 959 866 11.01      
12 A" 635 573 5.68      

Unscaled Zero Point Vibrational Energy (zpe) 10328.0 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 9322.1 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 HF/3-21G*
ABC
1.08471 0.75602 0.46618

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.037 0.932 0.000
C2 -0.037 -0.495 0.632
C3 -0.037 -0.495 -0.632
H4 0.925 1.264 0.000
H5 -0.109 -0.926 1.593
H6 -0.109 -0.926 -1.593

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.56051.56051.01792.44912.4491
C21.56051.26392.10171.05632.2680
C31.56051.26392.10172.26801.0563
H41.01792.10172.10172.89892.8989
H52.44911.05632.26802.89893.1869
H62.44912.26801.05632.89893.1869

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 66.112 N1 C2 H5 137.915
N1 C3 C2 66.112 N1 C3 H6 137.915
C2 N1 C3 47.777 C2 N1 H4 107.318
C2 C3 H6 155.535 C3 N1 H4 107.318
C3 C2 H5 155.535
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.566      
2 C -0.138      
3 C -0.138      
4 H 0.289      
5 H 0.276      
6 H 0.276      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.546 -2.098 0.000 2.606
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.856 2.616 0.000
y 2.616 -19.456 0.000
z 0.000 0.000 -14.440
Traceless
 xyz
x -1.908 2.616 0.000
y 2.616 -2.808 0.000
z 0.000 0.000 4.716
Polar
3z2-r29.432
x2-y20.600
xy2.616
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.702 0.449 0.000
y 0.449 3.414 0.000
z 0.000 0.000 4.237


<r2> (average value of r2) Å2
<r2> 34.091
(<r2>)1/2 5.839