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All results from a given calculation for CHNCH2 (2H-Azirine)

using model chemistry: HF/CEP-121G

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-121G
 hartrees
Energy at 0K-22.226667
Energy at 298.15K-22.229805
HF Energy-22.226667
Nuclear repulsion energy33.688116
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-121G
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' 3420 3121 0.19      
2 A' 3265 2979 19.28      
3 A' 1795 1638 27.54      
4 A' 1626 1484 1.77      
5 A' 1370 1251 18.54      
6 A' 1165 1063 11.34      
7 A' 1094 998 64.64      
8 A' 705 643 17.59      
9 A" 3378 3083 33.01      
10 A" 1196 1091 1.73      
11 A" 1048 956 0.28      
12 A" 870 794 33.83      

Unscaled Zero Point Vibrational Energy (zpe) 10466.1 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 9550.3 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-121G
ABC
1.18338 0.72435 0.49351

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.880 -0.158 0.000
C2 0.000 0.750 0.000
C3 0.667 -0.546 0.000
H4 0.062 1.816 0.000
H5 1.046 -0.968 0.913
H6 1.046 -0.968 -0.913

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.26371.59462.18692.28022.2802
C21.26371.45761.06832.20892.2089
C31.59461.45762.43891.07481.0748
H42.18691.06832.43893.09123.0912
H52.28022.20891.07483.09121.8258
H62.28022.20891.07483.09121.8258

picture of 2H-Azirine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 71.338 N1 C2 H4 139.204
N1 C3 C2 48.662 N1 C3 H5 115.973
N1 C3 H6 115.973 C2 N1 C3 60.000
C2 C3 N1 48.662 C2 C3 H5 120.693
C2 C3 H6 120.693 C3 C2 H4 149.458
H5 C3 H6 116.286
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.113      
2 C -0.108      
3 C -0.298      
4 H 0.195      
5 H 0.162      
6 H 0.162      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.334 1.454 0.000 2.750
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.500 -1.667 0.000
y -1.667 -15.745 0.000
z 0.000 0.000 -17.725
Traceless
 xyz
x -4.764 -1.667 0.000
y -1.667 3.868 0.000
z 0.000 0.000 0.897
Polar
3z2-r21.794
x2-y2-5.755
xy-1.667
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.310 -0.537 0.000
y -0.537 4.523 0.000
z 0.000 0.000 2.682


<r2> (average value of r2) Å2
<r2> 29.692
(<r2>)1/2 5.449