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

using model chemistry: HSEh1PBE/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 HSEh1PBE/3-21G*
 hartrees
Energy at 0K-131.772404
Energy at 298.15K-131.775423
HF Energy-131.772404
Nuclear repulsion energy62.682688
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 HSEh1PBE/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' 3280 3149 1.07      
2 A' 3174 3046 5.96      
3 A' 1649 1582 3.62      
4 A' 1528 1467 0.69      
5 A' 1223 1174 16.49      
6 A' 1043 1001 14.14      
7 A' 981 942 63.90      
8 A' 661 635 4.86      
9 A" 3280 3148 13.07      
10 A" 1116 1071 1.32      
11 A" 976 937 0.02      
12 A" 823 790 29.29      

Unscaled Zero Point Vibrational Energy (zpe) 9866.2 cm-1
Scaled (by 0.9599) Zero Point Vibrational Energy (zpe) 9470.5 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 HSEh1PBE/3-21G*
ABC
1.16445 0.71007 0.48510

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/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 0.755 0.000
C3 0.676 -0.553 0.000
H4 0.071 1.829 0.000
H5 1.044 -0.974 0.927
H6 1.044 -0.974 -0.927

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.27201.61362.20422.29382.2938
C21.27201.47281.07612.22242.2224
C31.61361.47282.45771.08271.0827
H42.20421.07612.45773.10813.1081
H52.29382.22241.08273.10811.8547
H62.29382.22241.08273.10811.8547

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 71.586 N1 C2 H4 139.536
N1 C3 C2 48.414 N1 C3 H5 115.167
N1 C3 H6 115.167 C2 N1 C3 60.000
C2 C3 N1 48.414 C2 C3 H5 120.064
C2 C3 H6 120.064 C3 C2 H4 148.878
H5 C3 H6 117.861
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.359      
2 C 0.035      
3 C -0.401      
4 H 0.242      
5 H 0.241      
6 H 0.241      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.864 1.260 0.000 2.250
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.536 -1.613 0.000
y -1.613 -15.637 0.000
z 0.000 0.000 -17.426
Traceless
 xyz
x -4.004 -1.613 0.000
y -1.613 3.344 0.000
z 0.000 0.000 0.660
Polar
3z2-r21.321
x2-y2-4.899
xy-1.613
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.401 -0.616 0.000
y -0.616 3.977 0.000
z 0.000 0.000 2.244


<r2> (average value of r2) Å2
<r2> 33.993
(<r2>)1/2 5.830