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All results from a given calculation for SiCl3CH3 (methyltrichlorosilane)

using model chemistry: B3LYP/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-56.166702
Energy at 298.15K-56.169586
HF Energy-56.166702
Nuclear repulsion energy77.956487
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/CEP-121G
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 3017 2940 0.43      
2 A1 1363 1328 15.99      
3 A1 718 699 51.35      
4 A1 374 365 21.42      
5 A1 193 188 18.82      
6 A2 161 157 0.00      
7 E 3130 3050 0.95      
7 E 3130 3050 0.95      
8 E 1469 1431 9.59      
8 E 1469 1431 9.59      
9 E 908 885 79.35      
9 E 908 885 79.35      
10 E 502 489 126.52      
10 E 502 489 126.53      
11 E 191 186 4.74      
11 E 191 186 4.74      
12 E 129 125 1.11      
12 E 129 125 1.11      

Unscaled Zero Point Vibrational Energy (zpe) 9240.6 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 9004.9 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/CEP-121G
ABC
0.05172 0.05172 0.03801

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.295
C2 0.000 0.000 2.188
Cl3 0.000 2.049 -0.489
Cl4 1.774 -1.024 -0.489
Cl5 -1.774 -1.024 -0.489
H6 0.000 -1.031 2.558
H7 0.893 0.515 2.558
H8 -0.893 0.515 2.558

Atom - Atom Distances (Å)
  Si1 C2 Cl3 Cl4 Cl5 H6 H7 H8
Si11.89302.19362.19362.19362.48642.48642.4864
C21.89303.37103.37103.37101.09491.09491.0949
Cl32.19363.37103.54863.54864.33183.52573.5257
Cl42.19363.37103.54863.54863.52573.52574.3318
Cl52.19363.37103.54863.54863.52574.33183.5257
H62.48641.09494.33183.52573.52571.78501.7850
H72.48641.09493.52573.52574.33181.78501.7850
H82.48641.09493.52574.33183.52571.78501.7850

picture of methyltrichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 C2 H6 109.736 Si1 C2 H7 109.736
Si1 C2 H8 109.736 C2 Si1 Cl3 110.938
C2 Si1 Cl4 110.938 C2 Si1 Cl5 110.938
Cl3 Si1 Cl4 107.965 Cl3 Si1 Cl5 107.965
Cl4 Si1 Cl5 107.965 H6 C2 H7 109.205
H6 C2 H8 109.205 H7 C2 H8 109.205
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.589      
2 C -0.689      
3 Cl -0.190      
4 Cl -0.190      
5 Cl -0.190      
6 H 0.223      
7 H 0.223      
8 H 0.223      


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 3.631 3.631
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -60.815 0.000 0.000
y 0.000 -60.815 0.000
z 0.000 0.000 -52.070
Traceless
 xyz
x -4.372 0.000 0.000
y 0.000 -4.372 0.000
z 0.000 0.000 8.744
Polar
3z2-r217.489
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.409 0.000 0.000
y 0.000 10.409 0.000
z 0.000 0.000 8.358


<r2> (average value of r2) Å2
<r2> 171.640
(<r2>)1/2 13.101