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All results from a given calculation for CH2CHNH2 (aminoethene)

using model chemistry: B3PW91/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/STO-3G
 hartrees
Energy at 0K-132.211016
Energy at 298.15K-132.216359
HF Energy-132.211016
Nuclear repulsion energy70.305912
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 B3PW91/STO-3G
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 3795 3358 0.22      
2 A 3598 3184 1.95      
3 A 3586 3173 0.41      
4 A 3467 3069 0.57      
5 A 3426 3032 31.20      
6 A 1882 1666 51.76      
7 A 1807 1599 12.82      
8 A 1580 1399 2.69      
9 A 1411 1249 0.80      
10 A 1392 1232 11.25      
11 A 1154 1022 1.05      
12 A 1086 961 13.60      
13 A 1027 909 1.49      
14 A 899 796 30.08      
15 A 776 687 177.05      
16 A 679 601 93.19      
17 A 476 422 5.74      
18 A 376 333 49.58      

Unscaled Zero Point Vibrational Energy (zpe) 16208.7 cm-1
Scaled (by 0.885) Zero Point Vibrational Energy (zpe) 14344.7 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 B3PW91/STO-3G
ABC
1.78813 0.32556 0.27951

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/STO-3G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.255 -0.204 0.016
C2 0.083 0.445 0.004
N3 -1.214 -0.171 -0.119
H4 1.313 -1.295 0.027
H5 2.199 0.343 0.006
H6 0.039 1.544 -0.012
H7 -1.173 -1.168 0.206
H8 -1.911 0.326 0.490

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6 H7 H8
C11.34012.47331.09301.09122.12972.61943.2451
C21.34011.44092.13122.11901.10022.05422.0555
N32.47331.44092.76953.45422.12681.04971.0502
H41.09302.13122.76951.86343.11232.49503.6380
H51.09122.11903.45421.86342.47173.70084.1387
H62.12971.10022.12683.11232.47172.97882.3533
H72.61942.05421.04972.49503.70082.97881.6908
H83.24512.05551.05023.63804.13872.35331.6908

picture of aminoethene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 125.544 C1 C2 H6 121.240
C2 C1 H4 121.967 C2 C1 H5 120.933
C2 N3 H7 110.137 C2 N3 H8 110.225
N3 C2 H6 112.957 H4 C1 H5 117.097
H7 N3 H8 107.251
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.208      
2 C -0.015      
3 N -0.367      
4 H 0.067      
5 H 0.075      
6 H 0.082      
7 H 0.183      
8 H 0.182      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.720 -0.110 1.383 1.563
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.847 0.208 -2.384
y 0.208 -15.614 -0.263
z -2.384 -0.263 -19.340
Traceless
 xyz
x 0.630 0.208 -2.384
y 0.208 2.479 -0.263
z -2.384 -0.263 -3.109
Polar
3z2-r2-6.218
x2-y2-1.233
xy0.208
xz-2.384
yz-0.263


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.097 -0.319 -0.140
y -0.319 2.502 0.015
z -0.140 0.015 0.599


<r2> (average value of r2) Å2
<r2> 49.864
(<r2>)1/2 7.061