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All results from a given calculation for CHNCH2 (2H-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-22.306077
Energy at 298.15K-22.309230
HF Energy-22.306077
Nuclear repulsion energy34.016398
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' 3419 3070 4.16      
2 A' 3292 2956 50.21      
3 A' 1904 1710 35.21      
4 A' 1642 1474 0.06      
5 A' 1461 1312 13.33      
6 A' 1151 1034 0.23      
7 A' 1106 994 66.85      
8 A' 771 692 20.87      
9 A" 3380 3035 54.21      
10 A" 1189 1068 2.96      
11 A" 1063 955 0.07      
12 A" 875 785 20.43      

Unscaled Zero Point Vibrational Energy (zpe) 10626.4 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 9542.5 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
1.19982 0.74859 0.50812

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 -0.863 -0.165 0.000
C2 0.000 0.741 0.000
C3 0.653 -0.532 0.000
H4 0.044 1.820 0.000
H5 1.041 -0.961 0.917
H6 1.041 -0.961 -0.917

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.25081.55952.18202.25842.2584
C21.25081.43041.08012.19552.1955
C31.55951.43042.42961.08451.0845
H42.18201.08012.42963.09333.0933
H52.25842.19551.08453.09331.8348
H62.25842.19551.08453.09331.8348

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 70.773 N1 C2 H4 138.699
N1 C3 C2 49.227 N1 C3 H5 116.172
N1 C3 H6 116.172 C2 N1 C3 60.000
C2 C3 N1 49.227 C2 C3 H5 121.005
C2 C3 H6 121.005 C3 C2 H4 150.528
H5 C3 H6 115.538
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 -0.036      
2 C -0.255      
3 C -0.266      
4 H 0.252      
5 H 0.153      
6 H 0.153      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.175 1.402 0.000 2.587
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.774 -1.377 0.000
y -1.377 -15.380 0.000
z 0.000 0.000 -17.383
Traceless
 xyz
x -4.392 -1.377 0.000
y -1.377 3.698 0.000
z 0.000 0.000 0.694
Polar
3z2-r21.387
x2-y2-5.394
xy-1.377
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.921 -0.491 0.000
y -0.491 4.217 0.000
z 0.000 0.000 2.379


<r2> (average value of r2) Å2
<r2> 29.046
(<r2>)1/2 5.389