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All results from a given calculation for CH2SiH2 (silaethylene)

using model chemistry: HF/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/6-31G*
 hartrees
Energy at 0K-329.037258
Energy at 298.15K-329.040718
HF Energy-329.037258
Nuclear repulsion energy51.725826
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/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3335 2996 4.90      
2 A1 2432 2185 63.36      
3 A1 1557 1399 5.88      
4 A1 1073 964 27.97      
5 A1 1015 912 35.22      
6 A2 787 707 0.00      
7 B1 907 815 47.85      
8 B1 549 493 40.63      
9 B2 3418 3071 1.36      
10 B2 2441 2193 173.28      
11 B2 910 817 102.12      
12 B2 518 466 10.25      

Unscaled Zero Point Vibrational Energy (zpe) 9470.4 cm-1
Scaled (by 0.8985) Zero Point Vibrational Energy (zpe) 8509.1 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/6-31G*
ABC
3.57231 0.49929 0.43806

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.147
Si2 0.000 0.000 0.546
H3 0.000 0.907 -1.725
H4 0.000 -0.907 -1.725
H5 0.000 1.232 1.343
H6 0.000 -1.232 1.343

Atom - Atom Distances (Å)
  C1 Si2 H3 H4 H5 H6
C11.69351.07591.07592.77822.7782
Si21.69352.44602.44601.46711.4671
H31.07592.44601.81493.08523.7403
H41.07592.44601.81493.74033.0852
H52.77821.46713.08523.74032.4639
H62.77821.46713.74033.08522.4639

picture of silaethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 Si2 H5 122.887 C1 Si2 H6 122.887
Si2 C1 H3 122.495 Si2 C1 H4 122.495
H3 C1 H4 115.011 H5 Si2 H6 114.226
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.650      
2 Si 0.464      
3 H 0.196      
4 H 0.196      
5 H -0.104      
6 H -0.104      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.698 0.698
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.762 0.000 0.000
y 0.000 -20.780 0.000
z 0.000 0.000 -20.376
Traceless
 xyz
x -2.184 0.000 0.000
y 0.000 0.789 0.000
z 0.000 0.000 1.395
Polar
3z2-r22.790
x2-y2-1.982
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.776 0.000 0.000
y 0.000 4.157 0.000
z 0.000 0.000 7.835


<r2> (average value of r2) Å2
<r2> 39.623
(<r2>)1/2 6.295