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: LSDA/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 LSDA/cc-pVDZ
 hartrees
Energy at 0K-131.934555
Energy at 298.15K-131.937551
HF Energy-131.934555
Nuclear repulsion energy63.484510
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 LSDA/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' 3140 3105 0.54      
2 A' 3025 2992 14.21      
3 A' 1718 1699 4.98      
4 A' 1414 1398 0.65      
5 A' 1306 1292 5.26      
6 A' 984 973 0.91      
7 A' 949 938 59.22      
8 A' 694 687 14.78      
9 A" 3122 3087 13.99      
10 A" 1056 1044 0.80      
11 A" 944 934 0.20      
12 A" 766 758 14.44      

Unscaled Zero Point Vibrational Energy (zpe) 9558.6 cm-1
Scaled (by 0.989) Zero Point Vibrational Energy (zpe) 9453.5 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 LSDA/cc-pVDZ
ABC
1.17170 0.74469 0.50336

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.865 -0.175 0.000
C2 0.000 0.746 0.000
C3 0.653 -0.530 0.000
H4 0.032 1.847 0.000
H5 1.052 -0.960 0.936
H6 1.052 -0.960 -0.936

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.26341.55862.21202.27302.2730
C21.26341.43401.10152.21252.2125
C31.55861.43402.45741.10481.1048
H42.21201.10152.45743.13033.1303
H52.27302.21251.10483.13031.8725
H62.27302.21251.10483.13031.8725

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 70.272 N1 C2 H4 138.480
N1 C3 C2 49.728 N1 C3 H5 116.129
N1 C3 H6 116.129 C2 N1 C3 60.000
C2 C3 N1 49.728 C2 C3 H5 120.716
C2 C3 H6 120.716 C3 C2 H4 151.248
H5 C3 H6 115.879
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.104      
2 C -0.027      
3 C -0.090      
4 H 0.058      
5 H 0.081      
6 H 0.081      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.581 1.259 0.000 2.021
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.164 -1.269 0.000
y -1.269 -15.617 0.000
z 0.000 0.000 -17.296
Traceless
 xyz
x -3.707 -1.269 0.000
y -1.269 3.113 0.000
z 0.000 0.000 0.595
Polar
3z2-r21.190
x2-y2-4.547
xy-1.269
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.730 -0.575 0.000
y -0.575 4.375 0.000
z 0.000 0.000 2.793


<r2> (average value of r2) Å2
<r2> 33.308
(<r2>)1/2 5.771