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All results from a given calculation for CH2SiH2 (silaethylene)

using model chemistry: B3LYP/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/LANL2DZ
 hartrees
Energy at 0K-44.326499
Energy at 298.15K-44.329826
HF Energy-44.326499
Nuclear repulsion energy21.192340
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/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 A1 3174 3050 1.54      
2 A1 2256 2168 28.00      
3 A1 1436 1381 14.33      
4 A1 989 951 14.01      
5 A1 921 885 33.35      
6 A2 762 733 0.00      
7 B1 859 826 97.55      
8 B1 458 441 12.35      
9 B2 3278 3151 4.37      
10 B2 2286 2197 89.90      
11 B2 897 863 78.83      
12 B2 513 493 6.30      

Unscaled Zero Point Vibrational Energy (zpe) 8914.8 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 8568.9 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/LANL2DZ
ABC
3.47968 0.48670 0.42698

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/LANL2DZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.163
Si2 0.000 0.000 0.556
H3 0.000 0.918 -1.746
H4 0.000 -0.918 -1.746
H5 0.000 1.249 1.342
H6 0.000 -1.249 1.342

Atom - Atom Distances (Å)
  C1 Si2 H3 H4 H5 H6
C11.71881.08791.08792.79922.7992
Si21.71882.47852.47851.47601.4760
H31.08792.47851.83643.10613.7730
H41.08792.47851.83643.77303.1061
H52.79921.47603.10613.77302.4983
H62.79921.47603.77303.10612.4983

picture of silaethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 Si2 H5 122.186 C1 Si2 H6 122.186
Si2 C1 H3 122.430 Si2 C1 H4 122.430
H3 C1 H4 115.140 H5 Si2 H6 115.628
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.849      
2 Si 0.518      
3 H 0.232      
4 H 0.232      
5 H -0.066      
6 H -0.066      


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 0.496 0.496
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.940 0.000 0.000
y 0.000 -19.289 0.000
z 0.000 0.000 -18.811
Traceless
 xyz
x -2.890 0.000 0.000
y 0.000 1.087 0.000
z 0.000 0.000 1.804
Polar
3z2-r23.607
x2-y2-2.651
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.412 0.000 0.000
y 0.000 4.015 0.000
z 0.000 0.000 7.904


<r2> (average value of r2) Å2
<r2> 36.357
(<r2>)1/2 6.030