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

using model chemistry: PBEPBEultrafine/aug-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 PBEPBEultrafine/aug-cc-pVTZ
 hartrees
Energy at 0K-132.564755
Energy at 298.15K-132.567755
HF Energy-132.564755
Nuclear repulsion energy63.416966
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 PBEPBEultrafine/aug-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' 3118 3083 2.70      
2 A' 3027 2994 23.23      
3 A' 1680 1661 6.65      
4 A' 1455 1439 0.13      
5 A' 1267 1253 6.85      
6 A' 1008 997 0.49      
7 A' 957 947 51.71      
8 A' 668 661 13.79      
9 A" 3112 3078 17.49      
10 A" 1076 1064 1.52      
11 A" 952 941 0.30      
12 A" 773 765 17.52      

Unscaled Zero Point Vibrational Energy (zpe) 9547.9 cm-1
Scaled (by 0.9888) Zero Point Vibrational Energy (zpe) 9440.9 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 PBEPBEultrafine/aug-cc-pVTZ
ABC
1.17908 0.73671 0.50008

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.870 -0.167 0.000
C2 0.000 0.747 0.000
C3 0.660 -0.536 0.000
H4 0.038 1.836 0.000
H5 1.046 -0.964 0.928
H6 1.046 -0.964 -0.928

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.26171.57302.19972.27222.2722
C21.26171.44271.09012.20902.2090
C31.57301.44272.45251.09191.0919
H42.19971.09012.45253.11683.1168
H52.27222.20901.09193.11681.8554
H62.27222.20901.09193.11681.8554

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 70.770 N1 C2 H4 138.449
N1 C3 C2 49.230 N1 C3 H5 115.824
N1 C3 H6 115.824 C2 N1 C3 60.000
C2 C3 N1 49.230 C2 C3 H5 120.641
C2 C3 H6 120.641 C3 C2 H4 150.781
H5 C3 H6 116.337
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.344      
2 C -0.411      
3 C -0.233      
4 H 0.446      
5 H 0.271      
6 H 0.271      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.731 1.218 0.000 2.116
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.900 -1.327 0.000
y -1.327 -15.849 0.000
z 0.000 0.000 -17.692
Traceless
 xyz
x -4.130 -1.327 0.000
y -1.327 3.447 0.000
z 0.000 0.000 0.683
Polar
3z2-r21.366
x2-y2-5.051
xy-1.327
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.940 -0.426 0.000
y -0.426 5.055 0.000
z 0.000 0.000 3.645


<r2> (average value of r2) Å2
<r2> 33.644
(<r2>)1/2 5.800