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: mPW1PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-31G
 hartrees
Energy at 0K-132.630963
Energy at 298.15K-132.633530
HF Energy-132.630963
Nuclear repulsion energy59.291372
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 mPW1PW91/6-31G
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' 3532 3343 11.99      
2 A' 3228 3056 9.46      
3 A' 2178 2061 325.31      
4 A' 1481 1402 9.58      
5 A' 1185 1122 10.46      
6 A' 969 918 333.58      
7 A' 801 758 138.80      
8 A' 462 438 24.84      
9 A" 3321 3144 0.01      
10 A" 1044 988 1.92      
11 A" 924 874 83.94      
12 A" 414 392 1.06      

Unscaled Zero Point Vibrational Energy (zpe) 9769.6 cm-1
Scaled (by 0.9466) Zero Point Vibrational Energy (zpe) 9247.9 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 mPW1PW91/6-31G
ABC
7.09072 0.31894 0.31245

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.192 -1.245 0.000
C2 0.000 0.055 0.000
N3 -0.301 1.249 0.000
H4 0.274 -1.793 0.929
H5 0.274 -1.793 -0.929
H6 0.404 1.985 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.31422.54161.08151.08153.2366
C21.31421.23062.08682.08681.9714
N32.54161.23063.23203.23201.0189
H41.08152.08683.23201.85713.8928
H51.08152.08683.23201.85713.8928
H63.23661.97141.01893.89283.8928

picture of Ethenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 174.270 C2 C1 H4 120.848
C2 C1 H5 120.848 C2 N3 H6 122.129
H4 C1 H5 118.304
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.447      
2 C 0.289      
3 N -0.569      
4 H 0.200      
5 H 0.200      
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
  1.800 -0.025 0.000 1.800
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.289 2.772 0.000
y 2.772 -14.657 0.000
z 0.000 0.000 -16.936
Traceless
 xyz
x -4.493 2.772 0.000
y 2.772 3.955 0.000
z 0.000 0.000 0.537
Polar
3z2-r21.075
x2-y2-5.632
xy2.772
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.818 -0.700 0.000
y -0.700 7.231 0.000
z 0.000 0.000 2.252


<r2> (average value of r2) Å2
<r2> 44.293
(<r2>)1/2 6.655