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All results from a given calculation for CH2SiH2 (silaethylene)

using model chemistry: HSEh1PBE/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HSEh1PBE/cc-pVTZ
 hartrees
Energy at 0K-329.804763
Energy at 298.15K-329.808034
HF Energy-329.804763
Nuclear repulsion energy51.398140
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 HSEh1PBE/cc-pVTZ
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 3166 3043 0.07      
2 A1 2251 2164 30.05      
3 A1 1388 1334 9.63      
4 A1 1001 962 15.81      
5 A1 928 892 27.54      
6 A2 732 704 0.00      
7 B1 775 744 44.56      
8 B1 470 451 21.41      
9 B2 3260 3133 0.04      
10 B2 2273 2185 79.56      
11 B2 826 794 62.38      
12 B2 473 454 6.68      

Unscaled Zero Point Vibrational Energy (zpe) 8770.8 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 8429.6 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 HSEh1PBE/cc-pVTZ
ABC
3.49613 0.49420 0.43299

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.549
C2 0.000 0.000 -1.154
H3 0.000 1.245 1.349
H4 0.000 -1.245 1.349
H5 0.000 0.917 -1.730
H6 0.000 -0.917 -1.730

Atom - Atom Distances (Å)
  Si1 C2 H3 H4 H5 H6
Si11.70351.48011.48012.45632.4563
C21.70352.79592.79591.08261.0826
H31.48012.79592.49093.09593.7621
H41.48012.79592.49093.76213.0959
H52.45631.08263.09593.76211.8342
H62.45631.08263.76213.09591.8342

picture of silaethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 Si2 H5 122.097 C1 Si2 H6 122.097
Si2 C1 H3 122.706 Si2 C1 H4 122.706
H3 C1 H4 114.588 H5 Si2 H6 115.807
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.162      
2 C -0.432      
3 H -0.001      
4 H -0.001      
5 H 0.136      
6 H 0.136      


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 0.688 0.688
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.797 0.000 0.000
y 0.000 -20.469 0.000
z 0.000 0.000 -20.199
Traceless
 xyz
x -2.463 0.000 0.000
y 0.000 1.029 0.000
z 0.000 0.000 1.434
Polar
3z2-r22.869
x2-y2-2.328
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.823 0.000 0.000
y 0.000 5.492 0.000
z 0.000 0.000 8.537


<r2> (average value of r2) Å2
<r2> 39.836
(<r2>)1/2 6.312