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 CH2CHNH2 (aminoethene)

using model chemistry: G3B3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at G3B3
 hartrees
Energy at 0K-133.832749
Energy at 298.15K-133.838436
HF Energy-133.942723
Nuclear repulsion energy71.329370
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 B3LYP/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 3629 3485 4.80      
2 A 3530 3390 4.67      
3 A 3258 3129 16.55      
4 A 3176 3050 8.82      
5 A 3166 3041 14.44      
6 A 1742 1673 127.89      
7 A 1682 1615 24.35      
8 A 1474 1415 1.86      
9 A 1351 1297 7.74      
10 A 1304 1252 30.56      
11 A 1090 1047 10.78      
12 A 1008 968 20.32      
13 A 969 930 2.21      
14 A 809 777 70.13      
15 A 738 709 95.63      
16 A 635 610 220.77      
17 A 470 452 4.12      
18 A 356 342 54.58      

Unscaled Zero Point Vibrational Energy (zpe) 15193.5 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 14590.4 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 B3LYP/6-31G*
ABC
1.88901 0.33191 0.28505

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.252 -0.197 0.019
C2 0.069 0.430 -0.002
N3 -1.191 -0.167 -0.092
H4 1.333 -1.281 0.028
H5 2.176 0.370 -0.003
H6 0.026 1.518 -0.017
H7 -1.199 -1.157 0.128
H8 -1.925 0.320 0.409

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6 H7 H8
C11.33912.44621.08771.08372.10812.63513.2424
C21.33911.39732.12742.10791.08892.03562.0386
N32.44621.39732.76163.41092.07991.01451.0133
H41.08772.12742.76161.85413.08942.53693.6497
H51.08372.10793.41091.85412.43743.70684.1217
H62.10811.08892.07993.08942.43742.94582.3286
H72.63512.03561.01452.53693.70682.94581.6694
H83.24242.03861.01333.64974.12172.32861.6694

picture of aminoethene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 126.732 C1 C2 H6 120.162
C2 C1 H4 122.145 C2 C1 H5 120.561
C2 N3 H7 114.194 C2 N3 H8 114.550
N3 C2 H6 112.977 H4 C1 H5 117.271
H7 N3 H8 110.831
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.381      
2 C 0.081      
3 N -0.717      
4 H 0.118      
5 H 0.132      
6 H 0.134      
7 H 0.316      
8 H 0.317      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.145 -0.062 1.137 1.615
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 49.819
(<r2>)1/2 7.058