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All results from a given calculation for CHNCH2 (2H-Azirine)

using model chemistry: mPW1PW91/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-311+G(3df,2p)
 hartrees
Energy at 0K-132.690166
Energy at 298.15K-132.693244
HF Energy-132.690166
Nuclear repulsion energy64.142948
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 mPW1PW91/6-311+G(3df,2p)
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' 3224 3224 1.12      
2 A' 3111 3111 23.62      
3 A' 1765 1765 10.40      
4 A' 1517 1517 0.37      
5 A' 1338 1338 7.64      
6 A' 1065 1065 0.10      
7 A' 1013 1013 55.20      
8 A' 722 722 16.06      
9 A" 3198 3198 17.72      
10 A" 1122 1122 1.70      
11 A" 997 997 0.16      
12 A" 817 817 17.48      

Unscaled Zero Point Vibrational Energy (zpe) 9943.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9943.7 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 mPW1PW91/6-311+G(3df,2p)
ABC
1.20499 0.75469 0.51198

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.859 -0.166 0.000
C2 0.000 0.738 0.000
C3 0.650 -0.529 0.000
H4 0.040 1.818 0.000
H5 1.038 -0.954 0.918
H6 1.038 -0.954 -0.918

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.24731.55222.17852.25022.2502
C21.24731.42451.08102.18742.1874
C31.55221.42452.42581.08381.0838
H42.17851.08102.42583.08663.0866
H52.25022.18741.08383.08661.8370
H62.25022.18741.08383.08661.8370

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 70.684 N1 C2 H4 138.567
N1 C3 C2 49.316 N1 C3 H5 116.086
N1 C3 H6 116.086 C2 N1 C3 60.000
C2 C3 N1 49.316 C2 C3 H5 120.806
C2 C3 H6 120.806 C3 C2 H4 150.749
H5 C3 H6 115.878
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.667      
2 C 0.433      
3 C -0.174      
4 H 0.181      
5 H 0.113      
6 H 0.113      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.829 1.265 0.000 2.224
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.704 -1.336 0.000
y -1.336 -15.532 0.000
z 0.000 0.000 -17.517
Traceless
 xyz
x -4.179 -1.336 0.000
y -1.336 3.579 0.000
z 0.000 0.000 0.601
Polar
3z2-r21.201
x2-y2-5.172
xy-1.336
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.635 -0.386 0.000
y -0.386 4.706 0.000
z 0.000 0.000 3.410


<r2> (average value of r2) Å2
<r2> 33.007
(<r2>)1/2 5.745