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: B2PLYP/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 B2PLYP/3-21G*
 hartrees
Energy at 0K-131.790449
Energy at 298.15K-131.793104
HF Energy-131.690837
Nuclear repulsion energy59.313906
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 B2PLYP/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' 3394 3394 8.18      
2 A' 3208 3208 7.48      
3 A' 2155 2155 237.95      
4 A' 1509 1509 10.35      
5 A' 1171 1171 3.83      
6 A' 1003 1003 357.16      
7 A' 779 779 133.30      
8 A' 517 517 30.84      
9 A" 3289 3289 0.01      
10 A" 1076 1076 1.80      
11 A" 933 933 67.02      
12 A" 458 458 1.24      

Unscaled Zero Point Vibrational Energy (zpe) 9746.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9746.1 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 B2PLYP/3-21G*
ABC
7.02491 0.31944 0.31307

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.049 -1.258 0.000
C2 0.000 0.056 0.000
N3 -0.051 1.282 0.000
H4 -0.074 -1.812 0.928
H5 -0.074 -1.812 -0.928
H6 0.802 1.856 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.31452.54001.08131.08133.2279
C21.31451.22752.08702.08701.9706
N32.54001.22753.23043.23041.0280
H41.08132.08703.23041.85633.8834
H51.08132.08703.23041.85633.8834
H63.22791.97061.02803.88343.8834

picture of Ethenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 175.459 C2 C1 H4 120.863
C2 C1 H5 120.863 C2 N3 H6 121.531
H4 C1 H5 118.273
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.407      
2 C 0.382      
3 N -0.720      
4 H 0.222      
5 H 0.222      
6 H 0.300      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.657 -0.050 0.000 1.658
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.046 3.380 0.000
y 3.380 -16.053 0.000
z 0.000 0.000 -17.086
Traceless
 xyz
x -2.477 3.380 0.000
y 3.380 2.013 0.000
z 0.000 0.000 0.464
Polar
3z2-r20.927
x2-y2-2.993
xy3.380
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.469 0.435 0.000
y 0.435 6.894 0.000
z 0.000 0.000 2.104


<r2> (average value of r2) Å2
<r2> 44.304
(<r2>)1/2 6.656