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: HSEh1PBE/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 HSEh1PBE/cc-pVTZ
 hartrees
Energy at 0K-132.578379
Energy at 298.15K-132.581455
HF Energy-132.578379
Nuclear repulsion energy64.095249
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 HSEh1PBE/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' 3217 3092 1.80      
2 A' 3107 2986 24.74      
3 A' 1763 1695 9.77      
4 A' 1510 1451 0.17      
5 A' 1336 1284 8.30      
6 A' 1058 1017 0.04      
7 A' 1007 968 56.34      
8 A' 722 694 15.48      
9 A" 3193 3069 19.88      
10 A" 1118 1074 1.55      
11 A" 994 955 0.14      
12 A" 815 783 16.36      

Unscaled Zero Point Vibrational Energy (zpe) 9920.3 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 9534.4 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 HSEh1PBE/cc-pVTZ
ABC
1.20248 0.75394 0.51131

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/cc-pVTZ

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 1.820 0.000
H5 1.039 -0.954 0.920
H6 1.039 -0.954 -0.920

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.24841.55302.18122.25202.2520
C21.24841.42531.08212.18882.1888
C31.55301.42532.42731.08491.0849
H42.18121.08212.42733.08823.0882
H52.25202.18881.08493.08821.8392
H62.25202.18881.08493.08821.8392

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 70.663 N1 C2 H4 138.651
N1 C3 C2 49.337 N1 C3 H5 116.105
N1 C3 H6 116.105 C2 N1 C3 60.000
C2 C3 N1 49.337 C2 C3 H5 120.774
C2 C3 H6 120.774 C3 C2 H4 150.685
H5 C3 H6 115.906
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.132      
2 C -0.043      
3 C -0.152      
4 H 0.120      
5 H 0.103      
6 H 0.103      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.765 1.273 0.000 2.176
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.459 -1.284 0.000
y -1.284 -15.561 0.000
z 0.000 0.000 -17.415
Traceless
 xyz
x -3.971 -1.284 0.000
y -1.284 3.376 0.000
z 0.000 0.000 0.595
Polar
3z2-r21.190
x2-y2-4.898
xy-1.284
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.195 -0.481 0.000
y -0.481 4.557 0.000
z 0.000 0.000 3.106


<r2> (average value of r2) Å2
<r2> 32.972
(<r2>)1/2 5.742