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: B3PW91/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 B3PW91/TZVP
 hartrees
Energy at 0K-132.708156
Energy at 298.15K-132.710707
HF Energy-132.708156
Nuclear repulsion energy59.749660
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 B3PW91/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' 3494 3369 20.69      
2 A' 3176 3062 10.67      
3 A' 2143 2067 418.48      
4 A' 1433 1382 6.04      
5 A' 1174 1132 17.76      
6 A' 991 955 215.21      
7 A' 718 693 109.16      
8 A' 477 460 24.74      
9 A" 3265 3148 1.82      
10 A" 997 961 0.96      
11 A" 900 868 62.91      
12 A" 419 404 0.60      

Unscaled Zero Point Vibrational Energy (zpe) 9592.9 cm-1
Scaled (by 0.9643) Zero Point Vibrational Energy (zpe) 9250.4 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 B3PW91/TZVP
ABC
6.79927 0.32533 0.31896

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.110 -1.242 0.000
C2 0.000 0.059 0.000
N3 -0.224 1.257 0.000
H4 0.162 -1.787 0.934
H5 0.162 -1.787 -0.934
H6 0.587 1.873 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.30602.52161.08191.08193.1516
C21.30601.21882.07472.07471.9064
N32.52161.21883.20703.20701.0183
H41.08192.07473.20701.86703.8005
H51.08192.07473.20701.86703.8005
H63.15161.90641.01833.80053.8005

picture of Ethenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 174.217 C2 C1 H4 120.357
C2 C1 H5 120.357 C2 N3 H6 116.612
H4 C1 H5 119.280
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.483      
2 C 0.192      
3 N -0.263      
4 H 0.164      
5 H 0.164      
6 H 0.227      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.586 -0.262 0.000 1.607
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.034 2.858 0.000
y 2.858 -15.843 0.000
z 0.000 0.000 -17.176
Traceless
 xyz
x -3.524 2.858 0.000
y 2.858 2.762 0.000
z 0.000 0.000 0.762
Polar
3z2-r21.524
x2-y2-4.191
xy2.858
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.941 -0.350 0.000
y -0.350 7.806 0.000
z 0.000 0.000 2.811


<r2> (average value of r2) Å2
<r2> 43.843
(<r2>)1/2 6.621