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All results from a given calculation for CH2CHNH2 (aminoethene)

using model chemistry: HF/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/3-21G*
 hartrees
Energy at 0K-132.326443
Energy at 298.15K-132.331758
HF Energy-132.326443
Nuclear repulsion energy72.078827
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 HF/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 3919 3537 39.33      
2 A 3795 3426 39.80      
3 A 3413 3081 19.84      
4 A 3336 3011 3.51      
5 A 3325 3001 15.69      
6 A 1842 1663 222.79      
7 A 1825 1647 33.94      
8 A 1621 1463 2.56      
9 A 1476 1332 12.07      
10 A 1382 1247 74.46      
11 A 1158 1046 6.82      
12 A 1126 1016 38.64      
13 A 1061 958 21.01      
14 A 989 892 159.75      
15 A 773 697 0.00      
16 A 502 453 1.86      
17 A 458 413 146.44      
18 A 227 205 307.05      

Unscaled Zero Point Vibrational Energy (zpe) 16114.1 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 14544.6 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 HF/3-21G*
ABC
1.99115 0.33670 0.28800

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.247 -0.194 -0.000
C2 -0.075 0.420 0.000
N3 1.171 -0.169 -0.001
H4 -1.332 -1.264 -0.001
H5 -2.158 0.369 0.001
H6 -0.039 1.494 0.001
H7 1.268 -1.159 0.003
H8 1.998 0.382 0.001

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6 H7 H8
C11.32352.41861.07351.07032.07582.69453.2959
C21.32351.37822.10172.08341.07452.07342.0732
N32.41861.37822.73233.37192.05670.99520.9933
H41.07352.10172.73231.82993.04612.60253.7145
H51.07032.08343.37191.82992.39863.75144.1556
H62.07581.07452.05673.04612.39862.95802.3211
H72.69452.07340.99522.60253.75142.95801.7049
H83.29592.07320.99333.71454.15562.32111.7049

picture of aminoethene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 127.057 C1 C2 H6 119.546
C2 C1 H4 122.172 C2 C1 H5 120.619
C2 N3 H7 120.902 C2 N3 H8 121.048
N3 C2 H6 113.397 H4 C1 H5 117.209
H7 N3 H8 118.049
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.522      
2 C 0.134      
3 N -0.909      
4 H 0.188      
5 H 0.199      
6 H 0.231      
7 H 0.340      
8 H 0.339      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.696 0.210 0.011 1.709
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.401 -0.192 0.013
y -0.192 -15.891 -0.006
z 0.013 -0.006 -22.629
Traceless
 xyz
x 2.859 -0.192 0.013
y -0.192 3.624 -0.006
z 0.013 -0.006 -6.483
Polar
3z2-r2-12.966
x2-y2-0.510
xy-0.192
xz0.013
yz-0.006


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.753 0.638 0.000
y 0.638 3.749 0.000
z 0.000 0.000 1.040


<r2> (average value of r2) Å2
<r2> 49.375
(<r2>)1/2 7.027