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All results from a given calculation for SiCl3CH3 (methyltrichlorosilane)

using model chemistry: HF/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at HF/CEP-31G*
 hartrees
Energy at 0K-55.224934
Energy at 298.15K-55.228335
HF Energy-55.224934
Nuclear repulsion energy81.585698
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/CEP-31G*
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 3221 2893 6.43      
2 A1 1439 1292 18.47      
3 A1 785 705 69.49      
4 A1 463 416 27.85      
5 A1 246 221 17.39      
6 A2 179 161 0.00      
7 E 3314 2976 11.59      
7 E 3314 2976 11.59      
8 E 1585 1423 4.17      
8 E 1585 1423 4.17      
9 E 897 805 82.57      
9 E 897 805 82.57      
10 E 598 537 193.83      
10 E 598 537 193.83      
11 E 231 207 5.87      
11 E 231 207 5.87      
12 E 164 147 0.60      
12 E 164 147 0.60      

Unscaled Zero Point Vibrational Energy (zpe) 9953.6 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 8938.4 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/CEP-31G*
ABC
0.05725 0.05725 0.04286

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.261
C2 0.000 0.000 2.129
Cl3 0.000 1.928 -0.469
Cl4 1.670 -0.964 -0.469
Cl5 -1.670 -0.964 -0.469
H6 0.000 -1.024 2.502
H7 0.887 0.512 2.502
H8 -0.887 0.512 2.502

Atom - Atom Distances (Å)
  Si1 C2 Cl3 Cl4 Cl5 H6 H7 H8
Si11.86762.06212.06212.06212.46422.46422.4642
C21.86763.23543.23543.23541.09021.09021.0902
Cl32.06213.23543.34023.34024.18913.40933.4093
Cl42.06213.23543.34023.34023.40933.40934.1891
Cl52.06213.23543.34023.34023.40934.18913.4093
H62.46421.09024.18913.40933.40931.77391.7739
H72.46421.09023.40933.40934.18911.77391.7739
H82.46421.09023.40934.18913.40931.77391.7739

picture of methyltrichlorosilane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Si1 C2 H6 110.048 Si1 C2 H7 110.048
Si1 C2 H8 110.048 C2 Si1 Cl3 110.743
C2 Si1 Cl4 110.743 C2 Si1 Cl5 110.743
Cl3 Si1 Cl4 108.170 Cl3 Si1 Cl5 108.170
Cl4 Si1 Cl5 108.170 H6 C2 H7 108.889
H6 C2 H8 108.889 H7 C2 H8 108.889
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.336      
2 C -0.370      
3 Cl -0.158      
4 Cl -0.158      
5 Cl -0.158      
6 H 0.169      
7 H 0.169      
8 H 0.169      


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 2.352 2.352
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -57.082 0.000 0.000
y 0.000 -57.082 0.000
z 0.000 0.000 -52.325
Traceless
 xyz
x -2.379 0.000 0.000
y 0.000 -2.379 0.000
z 0.000 0.000 4.757
Polar
3z2-r29.515
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 8.465 0.000 0.000
y 0.000 8.465 0.000
z 0.000 0.000 7.309


<r2> (average value of r2) Å2
<r2> 157.712
(<r2>)1/2 12.558