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/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 HF/cc-pVTZ
 hartrees
Energy at 0K-131.887130
Energy at 298.15K-131.890315
HF Energy-131.887130
Nuclear repulsion energy64.815956
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/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' 3362 3060 2.02      
2 A' 3232 2941 34.52      
3 A' 1907 1736 25.92      
4 A' 1640 1492 0.28      
5 A' 1443 1313 15.05      
6 A' 1178 1073 0.33      
7 A' 1108 1009 59.78      
8 A' 779 709 20.11      
9 A" 3311 3013 30.41      
10 A" 1208 1099 2.68      
11 A" 1078 981 0.00      
12 A" 902 821 16.48      

Unscaled Zero Point Vibrational Energy (zpe) 10573.8 cm-1
Scaled (by 0.9101) Zero Point Vibrational Energy (zpe) 9623.2 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/cc-pVTZ
ABC
1.23905 0.76553 0.52205

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.853 -0.156 0.000
C2 0.000 0.728 0.000
C3 0.643 -0.528 0.000
H4 0.054 1.798 0.000
H5 1.029 -0.953 0.909
H6 1.029 -0.953 -0.909

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.22791.54072.15412.23682.2368
C21.22791.41051.07182.17032.1703
C31.54071.41052.39941.07571.0757
H42.15411.07182.39943.05703.0570
H52.23682.17031.07573.05701.8190
H62.23682.17031.07573.05701.8190

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 71.073 N1 C2 H4 138.913
N1 C3 C2 48.927 N1 C3 H5 116.377
N1 C3 H6 116.377 C2 N1 C3 60.000
C2 C3 N1 48.927 C2 C3 H5 121.014
C2 C3 H6 121.014 C3 C2 H4 150.013
H5 C3 H6 115.449
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.183      
2 C -0.053      
3 C -0.142      
4 H 0.156      
5 H 0.111      
6 H 0.111      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.007 1.370 0.000 2.430
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.702 -1.232 0.000
y -1.232 -15.512 0.000
z 0.000 0.000 -17.552
Traceless
 xyz
x -4.170 -1.232 0.000
y -1.232 3.615 0.000
z 0.000 0.000 0.555
Polar
3z2-r21.110
x2-y2-5.190
xy-1.232
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.120 -0.454 0.000
y -0.454 4.399 0.000
z 0.000 0.000 2.974


<r2> (average value of r2) Å2
<r2> 32.604
(<r2>)1/2 5.710