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/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-132.573847
Energy at 298.15K-132.576420
HF Energy-132.573847
Nuclear repulsion energy59.696754
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/6-31G(2df,p)
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' 3522 3373 18.42      
2 A' 3201 3065 10.54      
3 A' 2170 2078 343.80      
4 A' 1435 1375 4.02      
5 A' 1179 1129 17.34      
6 A' 1026 982 197.11      
7 A' 707 677 85.98      
8 A' 498 477 21.50      
9 A" 3294 3155 1.45      
10 A" 992 950 0.49      
11 A" 910 872 52.19      
12 A" 427 409 0.14      

Unscaled Zero Point Vibrational Energy (zpe) 9680.6 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 9271.1 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/6-31G(2df,p)
ABC
6.75760 0.32479 0.31852

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.058 -1.246 0.000
C2 0.000 0.058 0.000
N3 -0.172 1.268 0.000
H4 0.089 -1.792 0.934
H5 0.089 -1.792 -0.934
H6 0.675 1.835 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.30612.52501.08221.08223.1422
C21.30611.22182.07482.07481.9000
N32.52501.22183.21013.21011.0183
H41.08222.07483.21011.86803.7906
H51.08222.07483.21011.86803.7906
H63.14221.90001.01833.79063.7906

picture of Ethenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 174.475 C2 C1 H4 120.333
C2 C1 H5 120.333 C2 N3 H6 115.734
H4 C1 H5 119.330
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.531      
2 C 0.426      
3 N -0.524      
4 H 0.173      
5 H 0.173      
6 H 0.284      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.438 -0.364 0.000 1.484
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.012 2.704 0.000
y 2.704 -15.660 0.000
z 0.000 0.000 -16.837
Traceless
 xyz
x -2.764 2.704 0.000
y 2.704 2.265 0.000
z 0.000 0.000 0.499
Polar
3z2-r20.998
x2-y2-3.352
xy2.704
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.404 -0.028 0.000
y -0.028 7.140 0.000
z 0.000 0.000 2.788


<r2> (average value of r2) Å2
<r2> 43.553
(<r2>)1/2 6.599