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: CCD/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 CCD/6-31G(2df,p)
 hartrees
Energy at 0K-132.394449
Energy at 298.15K-132.397055
HF Energy-131.889899
Nuclear repulsion energy59.593098
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 CCD/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' 3553 3365 19.73      
2 A' 3235 3064 9.25      
3 A' 2169 2054 279.59      
4 A' 1471 1393 1.80      
5 A' 1173 1112 22.64      
6 A' 1071 1015 185.30      
7 A' 757 717 78.29      
8 A' 489 464 20.67      
9 A" 3333 3157 0.91      
10 A" 1026 971 0.02      
11 A" 944 895 51.08      
12 A" 425 403 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 9823.4 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 9304.8 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 CCD/6-31G(2df,p)
ABC
6.70187 0.32346 0.31741

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.029 -1.250 0.000
C2 0.000 0.058 0.000
N3 -0.082 1.283 0.000
H4 -0.034 -1.793 0.933
H5 -0.034 -1.793 -0.933
H6 0.817 1.759 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.30862.53331.07961.07963.1257
C21.30861.22722.07342.07341.8869
N32.53331.22723.21453.21451.0178
H41.07962.07343.21451.86623.7700
H51.07962.07343.21451.86623.7700
H63.12571.88691.01783.77003.7700

picture of Ethenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 174.895 C2 C1 H4 120.196
C2 C1 H5 120.196 C2 N3 H6 114.060
H4 C1 H5 119.604
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability