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All results from a given calculation for CH2CHNH2 (aminoethene)

using model chemistry: B3LYP/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/CEP-31G*
 hartrees
Energy at 0K-24.175911
Energy at 298.15K-24.181257
HF Energy-24.175911
Nuclear repulsion energy40.319206
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/CEP-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3637 3513 5.27      
2 A 3532 3411 5.09      
3 A 3237 3126 29.92      
4 A 3164 3055 10.10      
5 A 3149 3041 12.56      
6 A 1718 1659 145.78      
7 A 1656 1599 28.16      
8 A 1429 1380 3.32      
9 A 1307 1262 13.96      
10 A 1261 1218 40.72      
11 A 1062 1026 16.94      
12 A 977 944 43.26      
13 A 928 896 3.65      
14 A 780 753 102.24      
15 A 716 692 111.45      
16 A 623 602 225.14      
17 A 447 431 4.14      
18 A 339 327 54.85      

Unscaled Zero Point Vibrational Energy (zpe) 14980.3 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 14466.5 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/CEP-31G*
ABC
1.82299 0.32263 0.27680

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.274 -0.201 0.018
C2 0.063 0.442 -0.000
N3 -1.208 -0.175 -0.096
H4 1.352 -1.295 0.020
H5 2.201 0.381 0.001
H6 0.019 1.538 -0.016
H7 -1.200 -1.166 0.151
H8 -1.943 0.320 0.408

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6 H7 H8
C11.37172.48481.09661.09382.14452.65933.2831
C21.37171.41572.16332.13841.09652.05012.0512
N32.48481.41572.79663.45452.10811.02091.0201
H41.09662.16332.79661.87813.13062.55913.6907
H51.09382.13843.45451.87812.46903.73884.1644
H62.14451.09652.10813.13062.46902.97022.3482
H72.65932.05011.02092.55913.73882.97021.6813
H83.28312.05121.02013.69074.16442.34821.6813

picture of aminoethene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 126.103 C1 C2 H6 120.249
C2 C1 H4 122.037 C2 C1 H5 119.881
C2 N3 H7 113.587 C2 N3 H8 113.743
N3 C2 H6 113.500 H4 C1 H5 118.058
H7 N3 H8 110.929
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.568      
2 C -0.204      
3 N -0.423      
4 H 0.203      
5 H 0.190      
6 H 0.234      
7 H 0.282      
8 H 0.285      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.164 -0.035 1.194 1.668
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.212 0.299 -2.501
y 0.299 -15.733 -0.201
z -2.501 -0.201 -22.541
Traceless
 xyz
x 1.926 0.299 -2.501
y 0.299 4.143 -0.201
z -2.501 -0.201 -6.069
Polar
3z2-r2-12.138
x2-y2-1.478
xy0.299
xz-2.501
yz-0.201


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.716 -0.729 0.011
y -0.729 4.081 0.042
z 0.011 0.042 2.403


<r2> (average value of r2) Å2
<r2> 44.225
(<r2>)1/2 6.650