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

using model chemistry: mPW1PW91/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/STO-3G
 hartrees
Energy at 0K-130.979162
Energy at 298.15K-130.982196
HF Energy-130.979162
Nuclear repulsion energy62.333377
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 mPW1PW91/STO-3G
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' 3527 3100 35.36      
2 A' 3387 2977 3.44      
3 A' 1796 1578 0.12      
4 A' 1622 1425 0.58      
5 A' 1414 1243 8.29      
6 A' 1131 994 26.81      
7 A' 1066 937 9.19      
8 A' 903 793 3.04      
9 A" 3540 3112 1.08      
10 A" 1170 1028 4.41      
11 A" 1061 932 0.28      
12 A" 812 713 12.83      

Unscaled Zero Point Vibrational Energy (zpe) 10713.5 cm-1
Scaled (by 0.8789) Zero Point Vibrational Energy (zpe) 9416.1 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 mPW1PW91/STO-3G
ABC
1.10387 0.73253 0.48412

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.883 -0.197 0.000
C2 0.000 0.771 0.000
C3 0.660 -0.535 0.000
H4 0.064 1.864 0.000
H5 1.077 -0.952 0.927
H6 1.077 -0.952 -0.927

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.31051.57972.26822.29612.2961
C21.31051.46381.09472.23392.2339
C31.57971.46382.47241.09871.0987
H42.26821.09472.47243.13363.1336
H52.29612.23391.09873.13361.8538
H62.29612.23391.09873.13361.8538

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 69.166 N1 C2 H4 140.973
N1 C3 C2 50.834 N1 C3 H5 116.878
N1 C3 H6 116.878 C2 N1 C3 60.000
C2 C3 N1 50.834 C2 C3 H5 120.670
C2 C3 H6 120.670 C3 C2 H4 149.860
H5 C3 H6 115.052
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.157      
2 C -0.020      
3 C -0.122      
4 H 0.123      
5 H 0.088      
6 H 0.088      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.412 1.093 0.000 1.786
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.839 -1.106 0.000
y -1.106 -15.057 0.000
z 0.000 0.000 -16.158
Traceless
 xyz
x -3.231 -1.106 0.000
y -1.106 2.442 0.000
z 0.000 0.000 0.790
Polar
3z2-r21.579
x2-y2-3.782
xy-1.106
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.879 -0.344 0.000
y -0.344 2.465 0.000
z 0.000 0.000 1.216


<r2> (average value of r2) Å2
<r2> 33.385
(<r2>)1/2 5.778