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 CHNHCH (1H-Azirine)

using model chemistry: B1B95/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 B1B95/TZVP
 hartrees
Energy at 0K-132.608884
Energy at 298.15K-132.611685
HF Energy-132.608884
Nuclear repulsion energy63.663448
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 B1B95/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' 3380 3234 2.12      
2 A' 3359 3214 22.91      
3 A' 1818 1740 8.05      
4 A' 1365 1306 10.88      
5 A' 1094 1047 5.01      
6 A' 913 873 28.57      
7 A' 587 562 91.61      
8 A" 3317 3174 17.40      
9 A" 1175 1124 44.33      
10 A" 987 944 14.45      
11 A" 787 753 8.57      
12 A" 594 569 6.28      

Unscaled Zero Point Vibrational Energy (zpe) 9687.9 cm-1
Scaled (by 0.9569) Zero Point Vibrational Energy (zpe) 9270.3 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 B1B95/TZVP
ABC
1.07136 0.82327 0.48824

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.035 0.889 0.000
C2 -0.035 -0.472 0.634
C3 -0.035 -0.472 -0.634
H4 0.929 1.229 0.000
H5 -0.133 -0.893 1.614
H6 -0.133 -0.893 -1.614

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.50141.50141.02192.40592.4059
C21.50141.26772.05511.07112.2889
C31.50141.26772.05512.28891.0711
H41.02192.05512.05512.86942.8694
H52.40591.07112.28892.86943.2279
H62.40592.28891.07112.86943.2279

picture of 1H-Azirine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 65.029 N1 C2 H5 137.921
N1 C3 C2 65.029 N1 C3 H6 137.921
C2 N1 C3 49.943 C2 N1 H4 107.547
C2 C3 H6 156.220 C3 N1 H4 107.547
C3 C2 H5 156.220
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.342      
2 C -0.088      
3 C -0.088      
4 H 0.204      
5 H 0.157      
6 H 0.157      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.232 -1.676 0.000 2.080
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.561 2.527 0.000
y 2.527 -19.610 0.000
z 0.000 0.000 -14.204
Traceless
 xyz
x -1.654 2.527 0.000
y 2.527 -3.228 0.000
z 0.000 0.000 4.881
Polar
3z2-r29.763
x2-y21.049
xy2.527
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.955 0.337 0.000
y 0.337 4.166 0.000
z 0.000 0.000 4.847


<r2> (average value of r2) Å2
<r2> 33.167
(<r2>)1/2 5.759