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All results from a given calculation for CHNHCH (1H-Azirine)

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-131.806790
Energy at 298.15K-131.809548
HF Energy-131.806790
Nuclear repulsion energy61.786359
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 B1B95/3-21G
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' 3415 3267 3.81      
2 A' 3151 3015 46.68      
3 A' 1771 1695 3.56      
4 A' 1407 1346 17.08      
5 A' 1019 975 3.86      
6 A' 840 803 11.72      
7 A' 644 616 103.46      
8 A" 3349 3204 14.53      
9 A" 1153 1104 36.06      
10 A" 986 944 17.25      
11 A" 820 785 5.64      
12 A" 522 499 3.82      

Unscaled Zero Point Vibrational Energy (zpe) 9538.8 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 9125.7 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 B1B95/3-21G
ABC
1.05513 0.73797 0.45589

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.038 0.947 0.000
C2 -0.038 -0.499 0.640
C3 -0.038 -0.499 -0.640
H4 0.967 1.235 0.000
H5 -0.121 -0.939 1.609
H6 -0.121 -0.939 -1.609

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.58101.58101.04542.48092.4809
C21.58101.28032.10351.06792.2938
C31.58101.28032.10352.29381.0679
H41.04542.10352.10352.91552.9155
H52.48091.06792.29382.91553.2187
H62.48092.29381.06792.91553.2187

picture of 1H-Azirine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 66.114 N1 C2 H5 138.147
N1 C3 C2 66.114 N1 C3 H6 138.147
C2 N1 C3 47.771 C2 N1 H4 104.588
C2 C3 H6 155.171 C3 N1 H4 104.588
C3 C2 H5 155.171
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.488      
2 C -0.124      
3 C -0.124      
4 H 0.270      
5 H 0.233      
6 H 0.233      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.409 -1.865 0.000 2.337
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.530 2.394 0.000
y 2.394 -19.126 0.000
z 0.000 0.000 -14.307
Traceless
 xyz
x -1.813 2.394 0.000
y 2.394 -2.707 0.000
z 0.000 0.000 4.520
Polar
3z2-r29.041
x2-y20.596
xy2.394
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.896 0.456 0.000
y 0.456 3.437 0.000
z 0.000 0.000 4.197


<r2> (average value of r2) Å2
<r2> 34.458
(<r2>)1/2 5.870