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-pVDZ

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-pVDZ
 hartrees
Energy at 0K-131.849844
Energy at 298.15K-131.853015
HF Energy-131.849844
Nuclear repulsion energy64.461854
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-pVDZ
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' 3384 3073 1.19      
2 A' 3246 2947 28.39      
3 A' 1923 1746 25.05      
4 A' 1620 1471 0.36      
5 A' 1452 1318 13.15      
6 A' 1157 1051 0.01      
7 A' 1098 997 60.88      
8 A' 775 704 18.72      
9 A" 3334 3027 33.07      
10 A" 1195 1085 2.50      
11 A" 1066 968 0.00      
12 A" 890 808 15.23      

Unscaled Zero Point Vibrational Energy (zpe) 10568.9 cm-1
Scaled (by 0.908) Zero Point Vibrational Energy (zpe) 9596.6 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-pVDZ
ABC
1.22282 0.75894 0.51701

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.856 -0.159 0.000
C2 0.000 0.732 0.000
C3 0.645 -0.529 0.000
H4 0.052 1.812 0.000
H5 1.037 -0.958 0.917
H6 1.037 -0.958 -0.917

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.23541.54572.16942.24982.2498
C21.23541.41631.08102.18402.1840
C31.54571.41632.41481.08561.0856
H42.16941.08102.41483.07903.0790
H52.24982.18401.08563.07901.8345
H62.24982.18401.08563.07901.8345

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 70.940 N1 C2 H4 138.870
N1 C3 C2 49.060 N1 C3 H5 116.428
N1 C3 H6 116.428 C2 N1 C3 60.000
C2 C3 N1 49.060 C2 C3 H5 121.042
C2 C3 H6 121.042 C3 C2 H4 150.191
H5 C3 H6 115.336
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.222      
2 C 0.022      
3 C 0.040      
4 H 0.054      
5 H 0.053      
6 H 0.053      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.953 1.403 0.000 2.405
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.534 -1.225 0.000
y -1.225 -15.582 0.000
z 0.000 0.000 -17.495
Traceless
 xyz
x -3.995 -1.225 0.000
y -1.225 3.432 0.000
z 0.000 0.000 0.563
Polar
3z2-r21.126
x2-y2-4.952
xy-1.225
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.716 -0.521 0.000
y -0.521 4.196 0.000
z 0.000 0.000 2.610


<r2> (average value of r2) Å2
<r2> 32.806
(<r2>)1/2 5.728