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 H2CCNH (Ethenimine)

using model chemistry: HF/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/6-31G*
 hartrees
Energy at 0K-131.871265
Energy at 298.15K-131.873988
HF Energy-131.871265
Nuclear repulsion energy60.109359
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 HF/6-31G*
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' 3730 3352 29.58      
2 A' 3361 3020 5.56      
3 A' 2271 2041 527.07      
4 A' 1590 1429 0.57      
5 A' 1262 1133 43.33      
6 A' 1142 1026 214.29      
7 A' 860 772 112.75      
8 A' 519 466 25.95      
9 A" 3452 3102 0.05      
10 A" 1113 1000 1.29      
11 A" 987 887 73.58      
12 A" 461 414 0.36      

Unscaled Zero Point Vibrational Energy (zpe) 10373.6 cm-1
Scaled (by 0.8985) Zero Point Vibrational Energy (zpe) 9320.7 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 HF/6-31G*
ABC
6.83110 0.32882 0.32254

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.286 -1.208 0.000
C2 0.000 0.062 0.000
N3 0.195 1.259 0.000
H4 -0.406 -1.733 0.927
H5 -0.406 -1.733 -0.927
H6 1.162 1.533 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.30132.51271.07261.07263.0997
C21.30131.21262.06082.06081.8749
N32.51271.21263.18943.18941.0054
H41.07262.06083.18941.85453.7400
H51.07262.06083.18941.85453.7400
H63.09971.87491.00543.74003.7400

picture of Ethenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.561 C2 C1 H4 120.175
C2 C1 H5 120.175 C2 N3 H6 115.094
H4 C1 H5 119.649
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.538      
2 C 0.445      
3 N -0.717      
4 H 0.218      
5 H 0.218      
6 H 0.375      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.499 -1.071 0.000 1.843
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.506 3.412 0.000
y 3.412 -18.476 0.000
z 0.000 0.000 -17.170
Traceless
 xyz
x 0.317 3.412 0.000
y 3.412 -1.138 0.000
z 0.000 0.000 0.821
Polar
3z2-r21.641
x2-y20.970
xy3.412
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.256 1.302 0.000
y 1.302 6.617 0.000
z 0.000 0.000 2.364


<r2> (average value of r2) Å2
<r2> 43.443
(<r2>)1/2 6.591