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: B2PLYP/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 B2PLYP/cc-pVTZ
 hartrees
Energy at 0K-132.614542
Energy at 298.15K-132.617586
HF Energy-132.440779
Nuclear repulsion energy63.760718
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 B2PLYP/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' 3229 3098 1.79      
2 A' 3127 3000 21.54      
3 A' 1701 1631 8.60      
4 A' 1519 1457 0.09      
5 A' 1301 1248 10.17      
6 A' 1054 1011 0.04      
7 A' 1000 959 53.75      
8 A' 672 645 11.79      
9 A" 3218 3088 17.44      
10 A" 1120 1075 1.52      
11 A" 988 948 0.32      
12 A" 801 768 16.58      

Unscaled Zero Point Vibrational Energy (zpe) 9864.1 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 9463.6 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 B2PLYP/cc-pVTZ
ABC
1.19338 0.74354 0.50485

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.866 -0.165 0.000
C2 0.000 0.743 0.000
C3 0.658 -0.535 0.000
H4 0.041 1.821 0.000
H5 1.037 -0.959 0.919
H6 1.037 -0.959 -0.919

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.25511.56792.18392.25742.2574
C21.25511.43721.07892.19472.1947
C31.56791.43722.43531.08111.0811
H42.18391.07892.43533.09273.0927
H52.25742.19471.08113.09271.8386
H62.25742.19471.08113.09271.8386

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 70.864 N1 C2 H4 138.558
N1 C3 C2 49.136 N1 C3 H5 115.678
N1 C3 H6 115.678 C2 N1 C3 60.000
C2 C3 N1 49.136 C2 C3 H5 120.614
C2 C3 H6 120.614 C3 C2 H4 150.578
H5 C3 H6 116.505
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.132      
2 C -0.058      
3 C -0.185      
4 H 0.140      
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
  1.783 1.252 0.000 2.179
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.644 -1.316 0.000
y -1.316 -15.739 0.000
z 0.000 0.000 -17.558
Traceless
 xyz
x -3.995 -1.316 0.000
y -1.316 3.362 0.000
z 0.000 0.000 0.634
Polar
3z2-r21.267
x2-y2-4.905
xy-1.316
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.217 -0.497 0.000
y -0.497 4.569 0.000
z 0.000 0.000 3.093


<r2> (average value of r2) Å2
<r2> 33.294
(<r2>)1/2 5.770