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: HF/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-133.034438
Energy at 298.15K-133.039799
HF Energy-133.034438
Nuclear repulsion energy71.659997
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/LANL2DZ
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 4020 3618 39.25      
2 A 3873 3486 45.28      
3 A 3452 3106 39.45      
4 A 3385 3046 14.40      
5 A 3339 3005 11.25      
6 A 1839 1655 305.98      
7 A 1816 1634 31.68      
8 A 1594 1435 1.65      
9 A 1456 1310 22.82      
10 A 1384 1245 89.20      
11 A 1138 1024 9.81      
12 A 1132 1019 44.14      
13 A 1050 945 9.09      
14 A 993 894 176.23      
15 A 762 685 3.93      
16 A 492 443 1.24      
17 A 433 390 203.20      
18 A 296 266 276.73      

Unscaled Zero Point Vibrational Energy (zpe) 16226.9 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 14602.6 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/LANL2DZ
ABC
1.96116 0.33216 0.28405

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.258 -0.196 -0.000
C2 0.072 0.427 0.000
N3 -1.179 -0.172 -0.000
H4 1.345 -1.268 0.000
H5 2.167 0.371 0.000
H6 0.037 1.501 -0.000
H7 -1.272 -1.160 0.000
H8 -2.005 0.374 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6 H7 H8
C11.34002.43701.07491.07132.09132.70703.3127
C21.34001.38732.12012.09551.07432.07992.0780
N32.43701.38732.75183.38952.06810.99220.9905
H41.07492.12012.75181.83303.06272.61933.7312
H51.07132.09553.38951.83302.41163.76394.1720
H62.09131.07432.06813.06272.41162.96532.3322
H72.70702.07990.99222.61933.76392.96531.7004
H83.31272.07800.99053.73124.17202.33221.7004

picture of aminoethene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 126.646 C1 C2 H6 119.646
C2 C1 H4 122.410 C2 C1 H5 120.281
C2 N3 H7 120.978 C2 N3 H8 120.930
N3 C2 H6 113.708 H4 C1 H5 117.309
H7 N3 H8 118.092
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.542      
2 C 0.107      
3 N -0.809      
4 H 0.176      
5 H 0.188      
6 H 0.186      
7 H 0.348      
8 H 0.346      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.706 0.179 0.001 1.715
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.704 0.105 -0.002
y 0.105 -15.959 -0.000
z -0.002 -0.000 -23.631
Traceless
 xyz
x 3.091 0.105 -0.002
y 0.105 4.209 -0.000
z -0.002 -0.000 -7.300
Polar
3z2-r2-14.600
x2-y2-0.745
xy0.105
xz-0.002
yz-0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.189 -0.831 -0.000
y -0.831 3.851 0.000
z -0.000 0.000 1.780


<r2> (average value of r2) Å2
<r2> 50.138
(<r2>)1/2 7.081