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

using model chemistry: HF/SDD

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/SDD
 hartrees
Energy at 0K-131.767632
Energy at 298.15K-131.770761
HF Energy-131.767632
Nuclear repulsion energy63.369908
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/SDD
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' 3492 3144 0.20      
2 A' 3327 2996 25.03      
3 A' 1824 1643 28.55      
4 A' 1644 1480 2.28      
5 A' 1375 1238 19.98      
6 A' 1182 1064 13.49      
7 A' 1104 994 73.35      
8 A' 702 632 13.62      
9 A" 3438 3096 34.48      
10 A" 1203 1083 1.49      
11 A" 1050 945 0.28      
12 A" 887 799 29.29      

Unscaled Zero Point Vibrational Energy (zpe) 10613.4 cm-1
Scaled (by 0.9004) Zero Point Vibrational Energy (zpe) 9556.3 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/SDD
ABC
1.19257 0.72527 0.49522

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/SDD

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.879 -0.153 0.000
C2 0.000 0.747 0.000
C3 0.666 -0.547 0.000
H4 0.071 1.809 0.000
H5 1.044 -0.969 0.910
H6 1.044 -0.969 -0.910

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.25831.59422.18012.27872.2787
C21.25831.45561.06432.20552.2055
C31.59421.45562.43031.07211.0721
H42.18011.06432.43033.08133.0813
H52.27872.20551.07213.08131.8199
H62.27872.20551.07213.08131.8199

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 71.529 N1 C2 H4 139.504
N1 C3 C2 48.471 N1 C3 H5 116.062
N1 C3 H6 116.062 C2 N1 C3 60.000
C2 C3 N1 48.471 C2 C3 H5 120.761
C2 C3 H6 120.761 C3 C2 H4 148.967
H5 C3 H6 116.165
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.196      
2 C -0.086      
3 C -0.355      
4 H 0.228      
5 H 0.205      
6 H 0.205      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.396 1.406 0.000 2.778
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.579 -1.702 0.000
y -1.702 -15.857 0.000
z 0.000 0.000 -17.747
Traceless
 xyz
x -4.777 -1.702 0.000
y -1.702 3.806 0.000
z 0.000 0.000 0.971
Polar
3z2-r21.942
x2-y2-5.722
xy-1.702
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.066 -0.524 0.000
y -0.524 4.285 0.000
z 0.000 0.000 2.278


<r2> (average value of r2) Å2
<r2> 33.860
(<r2>)1/2 5.819