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

using model chemistry: PBEPBE/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 PBEPBE/3-21G*
 hartrees
Energy at 0K-131.708098
Energy at 298.15K-131.710675
HF Energy-131.708098
Nuclear repulsion energy60.819203
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 PBEPBE/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' 3302 3149 2.24      
2 A' 2943 2806 73.17      
3 A' 1703 1624 3.24      
4 A' 1372 1308 12.35      
5 A' 977 931 5.29      
6 A' 795 758 8.36      
7 A' 591 563 92.23      
8 A" 3239 3088 8.23      
9 A" 1102 1051 30.67      
10 A" 921 878 20.05      
11 A" 745 711 3.06      
12 A" 430 410 2.73      

Unscaled Zero Point Vibrational Energy (zpe) 9059.7 cm-1
Scaled (by 0.9535) Zero Point Vibrational Energy (zpe) 8638.5 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 PBEPBE/3-21G*
ABC
1.03029 0.70886 0.44151

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.040 0.969 0.000
C2 -0.040 -0.508 0.647
C3 -0.040 -0.508 -0.647
H4 0.995 1.229 0.000
H5 -0.119 -0.957 1.626
H6 -0.119 -0.957 -1.626

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.61281.61281.06752.52192.5219
C21.61281.29452.12371.07942.3182
C31.61281.29452.12372.31821.0794
H41.06752.12372.12372.94392.9439
H52.52191.07942.31822.94393.2512
H62.52192.31821.07942.94393.2512

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 66.339 N1 C2 H5 138.146
N1 C3 C2 66.339 N1 C3 H6 138.146
C2 N1 C3 47.321 C2 N1 H4 102.911
C2 C3 H6 155.009 C3 N1 H4 102.911
C3 C2 H5 155.009
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.444      
2 C -0.118      
3 C -0.118      
4 H 0.254      
5 H 0.213      
6 H 0.213      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.315 -1.783 0.000 2.216
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.636 2.217 0.000
y 2.217 -19.130 0.000
z 0.000 0.000 -14.447
Traceless
 xyz
x -1.847 2.217 0.000
y 2.217 -2.589 0.000
z 0.000 0.000 4.436
Polar
3z2-r28.873
x2-y20.494
xy2.217
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.025 0.464 0.000
y 0.464 3.552 0.000
z 0.000 0.000 4.285


<r2> (average value of r2) Å2
<r2> 35.250
(<r2>)1/2 5.937