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: HF/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/6-31G
 hartrees
Energy at 0K-131.753084
Energy at 298.15K-131.756224
HF Energy-131.753084
Nuclear repulsion energy63.789461
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 HF/6-31G
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' 3475 3137 0.42      
2 A' 3321 2999 11.41      
3 A' 1853 1673 23.03      
4 A' 1661 1499 0.61      
5 A' 1389 1254 18.88      
6 A' 1191 1075 15.95      
7 A' 1105 997 60.36      
8 A' 701 633 11.42      
9 A" 3420 3088 25.10      
10 A" 1219 1101 2.54      
11 A" 1063 960 0.48      
12 A" 897 810 29.31      

Unscaled Zero Point Vibrational Energy (zpe) 10646.5 cm-1
Scaled (by 0.9029) Zero Point Vibrational Energy (zpe) 9612.8 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 HF/6-31G
ABC
1.20898 0.73501 0.50243

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.872 -0.151 0.000
C2 0.000 0.741 0.000
C3 0.660 -0.543 0.000
H4 0.069 1.803 0.000
H5 1.038 -0.966 0.908
H6 1.038 -0.966 -0.908

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.24791.58142.16912.26672.2667
C21.24791.44391.06412.19462.1946
C31.58141.44392.41941.07091.0709
H42.16911.06412.41943.07093.0709
H52.26672.19461.07093.07091.8168
H62.26672.19461.07093.07091.8168

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 71.539 N1 C2 H4 139.363
N1 C3 C2 48.461 N1 C3 H5 116.099
N1 C3 H6 116.099 C2 N1 C3 60.000
C2 C3 N1 48.461 C2 C3 H5 120.824
C2 C3 H6 120.824 C3 C2 H4 149.099
H5 C3 H6 116.046
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.365      
2 C 0.063      
3 C -0.307      
4 H 0.234      
5 H 0.187      
6 H 0.187      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.319 1.478 0.000 2.750
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.275 -1.592 0.000
y -1.592 -15.820 0.000
z 0.000 0.000 -17.679
Traceless
 xyz
x -4.526 -1.592 0.000
y -1.592 3.657 0.000
z 0.000 0.000 0.869
Polar
3z2-r21.738
x2-y2-5.456
xy-1.592
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.869 -0.555 0.000
y -0.555 4.192 0.000
z 0.000 0.000 2.332


<r2> (average value of r2) Å2
<r2> 33.494
(<r2>)1/2 5.787