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

using model chemistry: TPSSh/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 TPSSh/3-21G*
 hartrees
Energy at 0K-131.881107
Energy at 298.15K-131.883789
HF Energy-131.881107
Nuclear repulsion energy61.142304
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 TPSSh/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' 3375 3259 2.13      
2 A' 3066 2961 62.71      
3 A' 1735 1676 4.33      
4 A' 1396 1348 14.22      
5 A' 1002 967 3.66      
6 A' 813 786 8.61      
7 A' 631 609 101.55      
8 A" 3310 3197 7.44      
9 A" 1128 1089 34.26      
10 A" 955 922 19.26      
11 A" 783 756 3.67      
12 A" 484 467 3.23      

Unscaled Zero Point Vibrational Energy (zpe) 9338.9 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 9018.6 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 TPSSh/3-21G*
ABC
1.04386 0.71426 0.44539

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.039 0.965 0.000
C2 -0.039 -0.507 0.644
C3 -0.039 -0.507 -0.644
H4 0.981 1.235 0.000
H5 -0.117 -0.951 1.615
H6 -0.117 -0.951 -1.615

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.60661.60661.05512.50732.5073
C21.60661.28702.11861.07122.3034
C31.60661.28702.11862.30341.0712
H41.05512.11862.11862.93102.9310
H52.50731.07122.30342.93103.2307
H62.50732.30341.07122.93103.2307

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 66.388 N1 C2 H5 137.994
N1 C3 C2 66.388 N1 C3 H6 137.994
C2 N1 C3 47.225 C2 N1 H4 103.544
C2 C3 H6 155.127 C3 N1 H4 103.544
C3 C2 H5 155.127
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.464      
2 C -0.131      
3 C -0.131      
4 H 0.262      
5 H 0.232      
6 H 0.232      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.366 -1.846 0.000 2.296
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.958 0.468 0.000
y 0.468 3.565 0.000
z 0.000 0.000 4.273


<r2> (average value of r2) Å2
<r2> 35.005
(<r2>)1/2 5.917