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

using model chemistry: PBEPBEultrafine/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBEultrafine/6-31G(2df,p)
 hartrees
Energy at 0K-132.468969
Energy at 298.15K-132.471615
HF Energy-132.468969
Nuclear repulsion energy62.707056
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 PBEPBEultrafine/6-31G(2df,p)
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' 3294 3260 0.69      
2 A' 3188 3156 38.38      
3 A' 1752 1734 4.38      
4 A' 1357 1343 9.75      
5 A' 1043 1033 1.01      
6 A' 870 861 18.41      
7 A' 554 549 58.68      
8 A" 3231 3198 8.86      
9 A" 1133 1121 34.13      
10 A" 913 904 17.07      
11 A" 695 688 2.63      
12 A" 517 512 1.92      

Unscaled Zero Point Vibrational Energy (zpe) 9273.9 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 9178.3 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 PBEPBEultrafine/6-31G(2df,p)
ABC
1.04317 0.79488 0.47360

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.039 0.907 0.000
C2 -0.039 -0.481 0.642
C3 -0.039 -0.481 -0.642
H4 0.951 1.225 0.000
H5 -0.108 -0.905 1.634
H6 -0.108 -0.905 -1.634

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.52931.52931.03912.44162.4416
C21.52931.28382.07341.08172.3166
C31.52931.28382.07342.31661.0817
H41.03912.07342.07342.88572.8857
H52.44161.08172.31662.88573.2690
H62.44162.31661.08172.88573.2690

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 65.183 N1 C2 H5 137.837
N1 C3 C2 65.183 N1 C3 H6 137.837
C2 N1 C3 49.635 C2 N1 H4 106.081
C2 C3 H6 156.578 C3 N1 H4 106.081
C3 C2 H5 156.578
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.370      
2 C -0.089      
3 C -0.089      
4 H 0.220      
5 H 0.164      
6 H 0.164      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.092 -1.547 0.000 1.893
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.113 2.010 0.000
y 2.010 -18.958 0.000
z 0.000 0.000 -14.157
Traceless
 xyz
x -1.555 2.010 0.000
y 2.010 -2.824 0.000
z 0.000 0.000 4.379
Polar
3z2-r28.758
x2-y20.846
xy2.010
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.600 0.390 0.000
y 0.390 3.917 0.000
z 0.000 0.000 4.658


<r2> (average value of r2) Å2
<r2> 33.583
(<r2>)1/2 5.795