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: PBE1PBE/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBE1PBE/TZVP
 hartrees
Energy at 0K-132.563415
Energy at 298.15K-132.566492
HF Energy-132.563415
Nuclear repulsion energy64.059796
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 PBE1PBE/TZVP
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' 3227 3097 1.10      
2 A' 3112 2986 22.42      
3 A' 1769 1698 9.75      
4 A' 1517 1456 0.16      
5 A' 1340 1286 7.84      
6 A' 1064 1021 0.15      
7 A' 1014 973 62.51      
8 A' 723 694 16.31      
9 A" 3200 3071 19.07      
10 A" 1123 1078 1.40      
11 A" 995 955 0.08      
12 A" 814 781 16.78      

Unscaled Zero Point Vibrational Energy (zpe) 9948.8 cm-1
Scaled (by 0.9596) Zero Point Vibrational Energy (zpe) 9546.9 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 PBE1PBE/TZVP
ABC
1.20173 0.75284 0.51075

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.860 -0.166 0.000
C2 0.000 0.739 0.000
C3 0.650 -0.530 0.000
H4 0.041 1.821 0.000
H5 1.040 -0.956 0.920
H6 1.040 -0.956 -0.920

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.24871.55382.18212.25392.2539
C21.24871.42591.08322.19102.1910
C31.55381.42592.42921.08631.0863
H42.18211.08322.42923.09183.0918
H52.25392.19101.08633.09181.8406
H62.25392.19101.08633.09181.8406

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 70.678 N1 C2 H4 138.603
N1 C3 C2 49.322 N1 C3 H5 116.118
N1 C3 H6 116.118 C2 N1 C3 60.000
C2 C3 N1 49.322 C2 C3 H5 120.826
C2 C3 H6 120.826 C3 C2 H4 150.719
H5 C3 H6 115.823
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.139      
2 C -0.011      
3 C -0.262      
4 H 0.139      
5 H 0.137      
6 H 0.137      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.813 1.287 0.000 2.223
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.690 -1.400 0.000
y -1.400 -15.635 0.000
z 0.000 0.000 -17.418
Traceless
 xyz
x -4.163 -1.400 0.000
y -1.400 3.418 0.000
z 0.000 0.000 0.745
Polar
3z2-r21.490
x2-y2-5.054
xy-1.400
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.316 -0.480 0.000
y -0.480 4.604 0.000
z 0.000 0.000 3.030


<r2> (average value of r2) Å2
<r2> 33.064
(<r2>)1/2 5.750