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: B3PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31+G**
 hartrees
Energy at 0K-132.670859
Energy at 298.15K-132.673395
HF Energy-132.670859
Nuclear repulsion energy59.420047
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 B3PW91/6-31+G**
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' 3513 3373 21.61      
2 A' 3194 3066 10.24      
3 A' 2139 2053 425.51      
4 A' 1437 1379 4.66      
5 A' 1173 1126 21.03      
6 A' 1008 968 203.90      
7 A' 714 686 118.01      
8 A' 470 451 22.27      
9 A" 3287 3156 1.49      
10 A" 996 956 0.78      
11 A" 898 862 64.20      
12 A" 418 401 0.63      

Unscaled Zero Point Vibrational Energy (zpe) 9622.4 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 9238.4 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 B3PW91/6-31+G**
ABC
6.74058 0.32146 0.31527

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.159 -1.245 0.000
C2 0.000 0.059 0.000
N3 -0.276 1.256 0.000
H4 0.231 -1.787 0.936
H5 0.231 -1.787 -0.936
H6 0.517 1.897 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.31392.53821.08391.08393.1626
C21.31391.22782.08282.08281.9094
N32.53821.22783.22353.22351.0205
H41.08392.08283.22351.87173.8120
H51.08392.08283.22351.87173.8120
H63.16261.90941.02053.81203.8120

picture of Ethenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.946 C2 C1 H4 120.298
C2 C1 H5 120.298 C2 N3 H6 115.957
H4 C1 H5 119.400
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.119      
2 C -0.014      
3 N -0.541      
4 H 0.187      
5 H 0.187      
6 H 0.299      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.633 -0.267 0.000 1.654
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.414 2.750 0.000
y 2.750 -15.704 0.000
z 0.000 0.000 -17.298
Traceless
 xyz
x -3.912 2.750 0.000
y 2.750 3.152 0.000
z 0.000 0.000 0.761
Polar
3z2-r21.521
x2-y2-4.709
xy2.750
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.177 -0.614 0.000
y -0.614 7.963 0.000
z 0.000 0.000 2.875


<r2> (average value of r2) Å2
<r2> 44.276
(<r2>)1/2 6.654