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

using model chemistry: HF/TZVP

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/TZVP
 hartrees
Energy at 0K-131.822684
Energy at 298.15K-131.825689
HF Energy-131.822684
Nuclear repulsion energy64.284197
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/TZVP
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' 3609 3279 12.93      
2 A' 3525 3203 3.17      
3 A' 1931 1755 13.12      
4 A' 1463 1329 16.89      
5 A' 1176 1068 15.28      
6 A' 999 908 37.68      
7 A' 690 627 113.25      
8 A" 3457 3141 24.09      
9 A" 1263 1147 52.61      
10 A" 1113 1011 14.65      
11 A" 901 819 10.08      
12 A" 703 638 8.18      

Unscaled Zero Point Vibrational Energy (zpe) 10414.1 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 9462.2 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/TZVP
ABC
1.09715 0.83604 0.49670

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.035 0.881 0.000
C2 -0.035 -0.470 0.626
C3 -0.035 -0.470 -0.626
H4 0.904 1.240 0.000
H5 -0.115 -0.883 1.602
H6 -0.115 -0.883 -1.602

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.48851.48851.00592.38432.3843
C21.48851.25142.04921.06342.2673
C31.48851.25142.04922.26731.0634
H41.00592.04922.04922.84892.8489
H52.38431.06342.26732.84893.2044
H62.38432.26731.06342.84893.2044

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 65.142 N1 C2 H5 137.621
N1 C3 C2 65.142 N1 C3 H6 137.621
C2 N1 C3 49.715 C2 N1 H4 108.939
C2 C3 H6 156.677 C3 N1 H4 108.939
C3 C2 H5 156.677
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.344      
2 C -0.077      
3 C -0.077      
4 H 0.185      
5 H 0.157      
6 H 0.157      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.305 -1.804 0.000 2.227
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.813 2.628 0.000
y 2.628 -19.738 0.000
z 0.000 0.000 -14.146
Traceless
 xyz
x -1.871 2.628 0.000
y 2.628 -3.259 0.000
z 0.000 0.000 5.130
Polar
3z2-r210.260
x2-y20.925
xy2.628
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.835 0.300 0.000
y 0.300 4.000 0.000
z 0.000 0.000 4.796


<r2> (average value of r2) Å2
<r2> 32.849
(<r2>)1/2 5.731