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

using model chemistry: B3LYP/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 B3LYP/CEP-31G
 hartrees
Energy at 0K-22.859040
Energy at 298.15K-22.862005
HF Energy-22.859040
Nuclear repulsion energy32.900239
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 B3LYP/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' 3240 3138 2.14      
2 A' 3134 3035 26.75      
3 A' 1618 1567 6.07      
4 A' 1487 1440 1.00      
5 A' 1238 1199 12.73      
6 A' 1028 995 14.92      
7 A' 981 950 73.64      
8 A' 616 596 8.97      
9 A" 3246 3144 39.75      
10 A" 1089 1055 0.30      
11 A" 940 910 0.00      
12 A" 780 756 40.23      

Unscaled Zero Point Vibrational Energy (zpe) 9698.7 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 9392.2 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 B3LYP/CEP-31G
ABC
1.12462 0.69125 0.46992

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.900 -0.167 0.000
C2 0.000 0.771 0.000
C3 0.688 -0.557 0.000
H4 0.044 1.858 0.000
H5 1.064 -0.987 0.932
H6 1.064 -0.987 -0.932

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.29941.63502.23352.32362.3236
C21.29941.49571.08782.25662.2566
C31.63501.49572.49941.09341.0934
H42.23351.08782.49943.16293.1629
H52.32362.25661.09343.16291.8644
H62.32362.25661.09343.16291.8644

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 71.204 N1 C2 H4 138.488
N1 C3 C2 48.796 N1 C3 H5 115.344
N1 C3 H6 115.344 C2 N1 C3 60.000
C2 C3 N1 48.796 C2 C3 H5 120.496
C2 C3 H6 120.496 C3 C2 H4 150.308
H5 C3 H6 116.992
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.029      
2 C -0.225      
3 C -0.419      
4 H 0.288      
5 H 0.193      
6 H 0.193      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.133 1.317 0.000 2.507
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.115 -1.825 0.000
y -1.825 -15.486 0.000
z 0.000 0.000 -17.322
Traceless
 xyz
x -4.710 -1.825 0.000
y -1.825 3.732 0.000
z 0.000 0.000 0.978
Polar
3z2-r21.957
x2-y2-5.628
xy-1.825
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.173 -0.592 0.000
y -0.592 4.383 0.000
z 0.000 0.000 2.341


<r2> (average value of r2) Å2
<r2> 30.330
(<r2>)1/2 5.507