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

using model chemistry: PBE1PBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBE1PBE/3-21G
 hartrees
Energy at 0K-131.761465
Energy at 298.15K-131.764489
HF Energy-131.761465
Nuclear repulsion energy62.651729
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 PBE1PBE/3-21G
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' 3281 3151 1.04      
2 A' 3173 3048 5.75      
3 A' 1646 1581 3.59      
4 A' 1527 1466 0.69      
5 A' 1223 1174 16.36      
6 A' 1042 1001 14.52      
7 A' 982 943 63.94      
8 A' 664 638 4.88      
9 A" 3280 3150 12.83      
10 A" 1115 1070 1.35      
11 A" 976 937 0.02      
12 A" 822 790 29.84      

Unscaled Zero Point Vibrational Energy (zpe) 9864.5 cm-1
Scaled (by 0.9604) Zero Point Vibrational Energy (zpe) 9473.9 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 PBE1PBE/3-21G
ABC
1.16290 0.70958 0.48466

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.888 -0.156 0.000
C2 0.000 0.756 0.000
C3 0.676 -0.554 0.000
H4 0.071 1.830 0.000
H5 1.045 -0.974 0.928
H6 1.045 -0.974 -0.928

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.27301.61422.20532.29452.2945
C21.27301.47351.07632.22312.2231
C31.61421.47352.45891.08311.0831
H42.20531.07632.45893.10923.1092
H52.29452.22311.08313.10921.8558
H62.29452.22311.08313.10921.8558

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 71.569 N1 C2 H4 139.518
N1 C3 C2 48.431 N1 C3 H5 115.151
N1 C3 H6 115.151 C2 N1 C3 60.000
C2 C3 N1 48.431 C2 C3 H5 120.038
C2 C3 H6 120.038 C3 C2 H4 148.913
H5 C3 H6 117.908
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.360      
2 C 0.032      
3 C -0.405      
4 H 0.244      
5 H 0.244      
6 H 0.244      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.869 1.264 0.000 2.256
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.550 -1.620 0.000
y -1.620 -15.637 0.000
z 0.000 0.000 -17.443
Traceless
 xyz
x -4.010 -1.620 0.000
y -1.620 3.360 0.000
z 0.000 0.000 0.650
Polar
3z2-r21.300
x2-y2-4.913
xy-1.620
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.411 -0.616 0.000
y -0.616 3.981 0.000
z 0.000 0.000 2.247


<r2> (average value of r2) Å2
<r2> 34.020
(<r2>)1/2 5.833