return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: PBE1PBE/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBE1PBE/aug-cc-pVTZ
 hartrees
Energy at 0K-132.516132
Energy at 298.15K-132.518934
HF Energy-132.516132
Nuclear repulsion energy63.589975
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 PBE1PBE/aug-cc-pVTZ
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' 3368 3239 14.12      
2 A' 3365 3235 2.23      
3 A' 1807 1737 9.40      
4 A' 1375 1322 12.72      
5 A' 1087 1045 8.55      
6 A' 912 877 28.96      
7 A' 582 560 79.77      
8 A" 3300 3173 18.26      
9 A" 1170 1125 41.02      
10 A" 985 947 17.43      
11 A" 787 757 5.68      
12 A" 598 575 4.17      

Unscaled Zero Point Vibrational Energy (zpe) 9668.0 cm-1
Scaled (by 0.9615) Zero Point Vibrational Energy (zpe) 9295.7 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 PBE1PBE/aug-cc-pVTZ
ABC
1.06833 0.82193 0.48698

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.036 0.889 0.000
C2 -0.036 -0.473 0.635
C3 -0.036 -0.473 -0.635
H4 0.926 1.235 0.000
H5 -0.120 -0.894 1.618
H6 -0.120 -0.894 -1.618

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.50261.50261.02242.40922.4092
C21.50261.26932.06041.07302.2932
C31.50261.26932.06042.29321.0730
H41.02242.06042.06042.87142.8714
H52.40921.07302.29322.87143.2361
H62.40922.29321.07302.87143.2361

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 65.017 N1 C2 H5 137.958
N1 C3 C2 65.017 N1 C3 H6 137.958
C2 N1 C3 49.965 C2 N1 H4 107.853
C2 C3 H6 156.417 C3 N1 H4 107.853
C3 C2 H5 156.417
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.293      
2 C -0.386      
3 C -0.386      
4 H 0.102      
5 H 0.482      
6 H 0.482      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.119 -1.567 0.000 1.925
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.785 2.405 0.000
y 2.405 -19.709 0.000
z 0.000 0.000 -14.277
Traceless
 xyz
x -1.792 2.405 0.000
y 2.405 -3.178 0.000
z 0.000 0.000 4.970
Polar
3z2-r29.940
x2-y20.924
xy2.405
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.767 0.141 0.000
y 0.141 4.970 0.000
z 0.000 0.000 5.201


<r2> (average value of r2) Å2
<r2> 33.308
(<r2>)1/2 5.771