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

using model chemistry: HF/CEP-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 HF/CEP-31G
 hartrees
Energy at 0K-22.164453
Energy at 298.15K-22.167412
HF Energy-22.164453
Nuclear repulsion energy33.343564
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/CEP-31G
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' 3644 3284 12.51      
2 A' 3584 3230 1.17      
3 A' 1876 1691 12.24      
4 A' 1413 1274 18.44      
5 A' 1112 1002 4.02      
6 A' 955 861 44.08      
7 A' 718 647 165.40      
8 A" 3509 3163 24.55      
9 A" 1250 1127 56.75      
10 A" 1082 975 13.54      
11 A" 882 795 11.82      
12 A" 664 599 9.82      

Unscaled Zero Point Vibrational Energy (zpe) 10343.5 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 9323.6 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/CEP-31G
ABC
1.03991 0.78011 0.46535

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.035 0.912 0.000
C2 -0.035 -0.488 0.649
C3 -0.035 -0.488 -0.649
H4 0.906 1.294 0.000
H5 -0.122 -0.911 1.623
H6 -0.122 -0.911 -1.623

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.54311.54311.01512.44232.4423
C21.54311.29772.11681.06552.3125
C31.54311.29772.11682.31251.0655
H41.01512.11682.11682.92442.9244
H52.44231.06552.31252.92443.2458
H62.44232.31251.06552.92443.2458

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 65.134 N1 C2 H5 138.126
N1 C3 C2 65.134 N1 C3 H6 138.126
C2 N1 C3 49.732 C2 N1 H4 109.961
C2 C3 H6 156.083 C3 N1 H4 109.961
C3 C2 H5 156.083
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.449      
2 C -0.192      
3 C -0.192      
4 H 0.222      
5 H 0.306      
6 H 0.306      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.612 -2.077 0.000 2.629
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.116 3.097 0.000
y 3.097 -20.102 0.000
z 0.000 0.000 -14.390
Traceless
 xyz
x -1.870 3.097 0.000
y 3.097 -3.349 0.000
z 0.000 0.000 5.220
Polar
3z2-r210.439
x2-y20.986
xy3.097
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.126 0.330 0.000
y 0.330 4.026 0.000
z 0.000 0.000 4.806


<r2> (average value of r2) Å2
<r2> 30.061
(<r2>)1/2 5.483