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/SDD

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/SDD
 hartrees
Energy at 0K-131.825984
Energy at 298.15K-131.828718
HF Energy-131.825984
Nuclear repulsion energy59.584836
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/SDD
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' 3774 3398 65.62      
2 A' 3359 3024 6.35      
3 A' 2235 2013 575.83      
4 A' 1584 1426 9.58      
5 A' 1226 1104 15.11      
6 A' 1009 909 445.77      
7 A' 948 853 162.28      
8 A' 519 467 42.45      
9 A" 3471 3125 1.52      
10 A" 1135 1022 1.60      
11 A" 994 895 102.42      
12 A" 465 419 0.41      

Unscaled Zero Point Vibrational Energy (zpe) 10359.1 cm-1
Scaled (by 0.9004) Zero Point Vibrational Energy (zpe) 9327.3 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 HF/SDD
ABC
7.21887 0.32136 0.31477

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.034 -1.257 0.000
C2 0.000 0.055 0.000
N3 -0.064 1.278 0.000
H4 -0.051 -1.801 0.923
H5 -0.051 -1.801 -0.923
H6 0.753 1.864 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.31242.53481.07161.07163.2181
C21.31241.22432.07352.07351.9589
N32.53481.22433.21403.21401.0051
H41.07162.07353.21401.84613.8634
H51.07162.07353.21401.84613.8634
H63.21811.95891.00513.86343.8634

picture of Ethenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 175.524 C2 C1 H4 120.523
C2 C1 H5 120.523 C2 N3 H6 122.664
H4 C1 H5 118.952
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.581      
2 C 0.210      
3 N -0.422      
4 H 0.233      
5 H 0.233      
6 H 0.327      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.940 -0.549 0.000 2.016
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.090 3.911 0.000
y 3.911 -16.938 0.000
z 0.000 0.000 -17.601
Traceless
 xyz
x -2.820 3.911 0.000
y 3.911 1.908 0.000
z 0.000 0.000 0.913
Polar
3z2-r21.825
x2-y2-3.152
xy3.911
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.936 0.242 0.000
y 0.242 7.681 0.000
z 0.000 0.000 2.297


<r2> (average value of r2) Å2
<r2> 44.569
(<r2>)1/2 6.676