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: HSEh1PBE/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HSEh1PBE/3-21G*
 hartrees
Energy at 0K-131.828392
Energy at 298.15K-131.831067
HF Energy-131.828392
Nuclear repulsion energy59.523395
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 HSEh1PBE/3-21G*
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' 3423 3286 13.34      
2 A' 3206 3077 10.89      
3 A' 2205 2116 279.17      
4 A' 1486 1426 12.50      
5 A' 1196 1148 6.35      
6 A' 982 942 344.26      
7 A' 786 755 147.08      
8 A' 537 516 36.69      
9 A" 3289 3157 0.49      
10 A" 1057 1015 3.73      
11 A" 926 888 71.76      
12 A" 471 452 1.52      

Unscaled Zero Point Vibrational Energy (zpe) 9780.6 cm-1
Scaled (by 0.9599) Zero Point Vibrational Energy (zpe) 9388.4 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 HSEh1PBE/3-21G*
ABC
7.00670 0.32220 0.31566

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.133 -1.246 0.000
C2 0.000 0.056 0.000
N3 0.037 1.277 0.000
H4 -0.194 -1.797 0.930
H5 -0.194 -1.797 -0.930
H6 0.927 1.791 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.30902.52831.08321.08323.2165
C21.30901.22102.08282.08281.9667
N32.52831.22103.21983.21981.0275
H41.08322.08283.21981.86103.8723
H51.08322.08283.21981.86103.8723
H63.21651.96671.02753.87233.8723

picture of Ethenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 175.901 C2 C1 H4 120.790
C2 C1 H5 120.790 C2 N3 H6 121.775
H4 C1 H5 118.419
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.453      
2 C 0.406      
3 N -0.765      
4 H 0.249      
5 H 0.249      
6 H 0.314      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.676 -0.256 0.000 1.695
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.510 3.637 0.000
y 3.637 -16.237 0.000
z 0.000 0.000 -16.916
Traceless
 xyz
x -1.933 3.637 0.000
y 3.637 1.476 0.000
z 0.000 0.000 0.457
Polar
3z2-r20.915
x2-y2-2.273
xy3.637
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.557 0.784 0.000
y 0.784 6.723 0.000
z 0.000 0.000 2.108


<r2> (average value of r2) Å2
<r2> 43.946
(<r2>)1/2 6.629