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 CHNCH2 (2H-Azirine)

using model chemistry: PBEPBEultrafine/6-311G*

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/6-311G*
 hartrees
Energy at 0K-132.543106
Energy at 298.15K-132.546090
HF Energy-132.543106
Nuclear repulsion energy63.294883
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/6-311G*
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' 3116 3084 7.12      
2 A' 3024 2993 28.51      
3 A' 1689 1671 6.42      
4 A' 1470 1454 0.07      
5 A' 1277 1264 7.70      
6 A' 994 984 1.73      
7 A' 954 944 60.59      
8 A' 671 664 13.95      
9 A" 3111 3079 29.54      
10 A" 1089 1077 1.04      
11 A" 956 946 0.34      
12 A" 755 747 16.33      

Unscaled Zero Point Vibrational Energy (zpe) 9552.4 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 9453.0 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/6-311G*
ABC
1.17498 0.73397 0.49821

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.870 -0.169 0.000
C2 0.000 0.749 0.000
C3 0.661 -0.536 0.000
H4 0.030 1.841 0.000
H5 1.047 -0.969 0.929
H6 1.047 -0.969 -0.929

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.26441.57512.20232.27542.2754
C21.26441.44501.09302.21532.2153
C31.57511.44502.45981.09471.0947
H42.20231.09302.45983.12933.1293
H52.27542.21531.09473.12931.8578
H62.27542.21531.09473.12931.8578

picture of 2H-Azirine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 70.732 N1 C2 H4 138.084
N1 C3 C2 49.268 N1 C3 H5 115.749
N1 C3 H6 115.749 C2 N1 C3 60.000
C2 C3 N1 49.268 C2 C3 H5 120.825
C2 C3 H6 120.825 C3 C2 H4 151.183
H5 C3 H6 116.102
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.185      
2 C -0.037      
3 C -0.429      
4 H 0.210      
5 H 0.220      
6 H 0.220      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.655 1.237 0.000 2.066
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.503 -1.435 0.000
y -1.435 -15.695 0.000
z 0.000 0.000 -17.441
Traceless
 xyz
x -3.936 -1.435 0.000
y -1.435 3.277 0.000
z 0.000 0.000 0.658
Polar
3z2-r21.317
x2-y2-4.809
xy-1.435
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.998 -0.546 0.000
y -0.546 4.484 0.000
z 0.000 0.000 2.837


<r2> (average value of r2) Å2
<r2> 33.565
(<r2>)1/2 5.794