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/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-131.886291
Energy at 298.15K-131.889477
HF Energy-131.886291
Nuclear repulsion energy64.847077
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/6-311+G(3df,2p)
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' 3363 3055 1.25      
2 A' 3230 2935 33.65      
3 A' 1904 1730 27.60      
4 A' 1641 1491 0.55      
5 A' 1445 1313 13.85      
6 A' 1182 1074 0.44      
7 A' 1110 1009 59.28      
8 A' 782 710 21.20      
9 A" 3310 3007 26.85      
10 A" 1209 1098 2.72      
11 A" 1080 981 0.00      
12 A" 903 821 16.94      

Unscaled Zero Point Vibrational Energy (zpe) 10579.7 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 9612.7 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 HF/6-311+G(3df,2p)
ABC
1.23960 0.76671 0.52268

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.852 -0.156 0.000
C2 0.000 0.727 0.000
C3 0.642 -0.527 0.000
H4 0.053 1.798 0.000
H5 1.029 -0.952 0.909
H6 1.029 -0.952 -0.909

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.22761.53912.15382.23572.2357
C21.22761.40941.07202.16972.1697
C31.53911.40942.39901.07591.0759
H42.15381.07202.39903.05713.0571
H52.23572.16971.07593.05711.8189
H62.23572.16971.07593.05711.8189

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 71.037 N1 C2 H4 138.869
N1 C3 C2 48.963 N1 C3 H5 116.385
N1 C3 H6 116.385 C2 N1 C3 60.000
C2 C3 N1 48.963 C2 C3 H5 121.034
C2 C3 H6 121.034 C3 C2 H4 150.094
H5 C3 H6 115.403
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.766      
2 C 0.493      
3 C -0.170      
4 H 0.210      
5 H 0.117      
6 H 0.117      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.050 1.355 0.000 2.458
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.929 -1.267 0.000
y -1.267 -15.499 0.000
z 0.000 0.000 -17.674
Traceless
 xyz
x -4.342 -1.267 0.000
y -1.267 3.802 0.000
z 0.000 0.000 0.540
Polar
3z2-r21.080
x2-y2-5.429
xy-1.267
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.478 -0.380 0.000
y -0.380 4.520 0.000
z 0.000 0.000 3.252


<r2> (average value of r2) Å2
<r2> 32.652
(<r2>)1/2 5.714